2004 Audi A4 / S4 / RS4 Audi A4 / S4 / RS4 2004

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2004 Audi A4 / S4 / RS4 repairs by problem area

Engine (47%)

Transmission and Drivetrain (7%)

Brakes and Traction Control (6%)

Suspension and Steering (13%)

Electrical and Air Conditioning (22%)

Paint, Rust, Leaks, Rattles, and Trim (4%)

Other (3%)

Chart based on 520 repairs.

2004 Audi A4 / S4 / RS4 engine repair cost distribution

$2500+ (9%)

$1000 - $2499 (18%)

$500 - $999 (26%)

$100 - $499 (31%)

< $100 (15%)

Chart based on 142 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2004 Audi S4 4dr Wagon

340-horsepower 4.2L V8 6-speed shiftable automatic AWD

42000 mi

US $50
Fluid leak required replacement of oil pan. Part is cheap, but access requires full engine removal in this car. Repair was covered under CPO warranty. 
49000 mi

US $50
Automatic gearbox manual gear selector would not upshift. Electronic board ordered under extend warranty 
92000 mi

US $1000
Fuel pump failed. Fuel filter also replaced. 

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2004 Audi S4 4dr Wagon

340-horsepower 4.2L V8 6-speed manual AWD

24800 mi

C $1000
Driver's side aux rad damaged by rock, slight coolant loss over 1 month. Replaced radiator. Red oil pressure warning light. No other symptoms (ie. no rough idle, no low oil level, etc.). Towed to dealer - unable to reproduce or diagnose. Replaced oil pressure sensor / transmitter at owner's request. 
26040 mi

C $140
Intermittent lean code. Every other month, unable to diagnose, so code cleared. 
50220 mi

C $600
Passenger aux radiator damaged by rock and slowly leaking coolant. Not an uncommon issue and exacerbated by winter gravel in Alberta. Replaced part. 
55800 mi

C $600
Leaking valve cover gaskets; replaced. 
115000 mi

US $7500
Main timing chain guide rail broke - requires removal of engine OR transmission to repair. Predictable failure at 100K miles, prefaced by noise on startup. Replaced clutch at same time since that was planned and tranny was out. 

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2004 Audi S4 4dr Sedan

340-horsepower 4.2L V8 6-speed shiftable automatic AWD

166000 mi

US $760
Fuel pump failed. 
110000 mi

US $45
Oil pressure sensor physically broke, allowing large amounts of motor oil to leak through the small plastic fitting ONLY while running. 
65000 mi

US $700
Intake gaskets. 
77300 mi

US $5600
Rear main seal needed replacement. 
83000 mi Valve cover gaskets 
87000 mi

US $200
Had to replace maf sensor 
106000 mi

US $400
replaced valve cover gasket on both sides, was leaking oil, 1 quart every 100 mile or so 
37820 mi Replace one coil. 
42160 mi replace one cat 
49600 mi

C $1500
leaking aux rads 
39000 mi

US $1200
Driver side auxiliary radiator and associated hose(s). 
94000 mi

US $3500
Catalytic converters stopped up and flex couplers blew out on exhaust mid pipes. Replaced mid pipes (required) and cat back (pro actively). Opted for aftermarket parts reducing part costs about 50%. 
94000 mi

US $425
MAF element cover came off and lodged in throttle body MAF replaced. Luckily cover didn't enter intake or engine. 
79000 mi Secondary air system problem emissions 

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2004 Audi S4 4dr Sedan

340-horsepower 4.2L V8 6-speed manual AWD

50500 mi

US $940
One of aux radiators started to leak and needed to be replaced 
69000 mi

US $950
Middle muffler rotted through. Had to change the exhaust from after the cats 
19840 mi Changing block motor due to invalid boost pressure in cylinder 4 & 8 caused by malfunction in cylinder 2. Approx. cost by the dealer and audi 20k$. 
40000 mi

US $400
valve cover gasket leak 
58700 mi

US $250
fuel leak at tank coupling 
60000 mi coolant overflow bottle leaking 
62000 mi

US $50
gas filler neck seal torn- seal replaced 
92000 mi

US $700
Leaking radiator replaced. 
97000 mi

US $1500
Oxygen sensor failure. 
120000 mi Timing chain guide failure, caused the chain to skip tooth, bend valves, then scorch the cylinder walls and piston tops. 
32700 mi

US $30
after a 1000k trip, i noticed that the fuel pump was making a loud mechanical noise on initial start up and ended after 30sec. , googled the problem, fuel pump VS fuel filter..?? replaced the fuel filter and fuel pump noise disappeared. 
43000 mi

US $2300
Both aux radiators were found to be leaking coolant on the back side. Had them pulled and replaces with OEM parts and hoses. small coolant leak on both right and left front of car. both right and left auxiliary radiators rusted because of debris from low air intake position , design flaw.! full coolant replaced , radiator hoses replaced. 
42000 mi

US $1600
small coolant leak on both right and left front of car. both right and left auxiliary radiators rusted because of debris from low air intake position , design flaw.! full coolant replaced , radiator hoses replaced. 
73000 mi

US $200
Sand blast and paint inside of valve covers and replace gaskets 
75000 mi

US $699
coolant sensor replaced, fuel filter replaced, inside of valve covers sanblasted and painted Still failed to start when warm, replaced the cam position sensor 
88000 mi

US $200
reset idiot light. replaced o2 sensor 
157000 mi

US $300
Replace leaking valve cover gaskets 
78000 mi

US $650
Heater hose leaking. Required removing the trans and cutting out the catalytic converter. 
21000 mi

US $310
Mass Air Flow was replaced. 
39000 mi The accessory belt for the alternator broke. Replaced belt and performed preventive maintenance by replacing accessory belt pulley and tensioner. Additionally, the spark plugs were replaced. 
16000 mi oil leak pass side valve cover 
159000 mi

US $520
Fuel vapor canister replaced after CEL. 
186000 mi

US $900
Removed and replaced serpentine belt due to wear. Replaced coolant reservoir. It had small crack in it, and coolant was crystalizing on the outside of the tank. 
206000 mi Developed a radiator leak in the secondary radiator on the front passenger side of the car. It needed replacing. 
52000 mi

US $60
Ignition Coil went bad and was replaced by me. 
54000 mi

US $50
Another Ignition coil went bad. Replaced in an hour by me. 
66000 mi

US $300
My fuel pump died. Part was replaced by me. 
69000 mi Auxiliary radiator was leaking. Part replaced by me. 
81000 mi

US $50
One of my O2 sensors went bad and i replaced it myself. 
103000 mi

US $9000
Camshaft adjuster. Only way to repair is to pull the engine Valve spring failure on Cyl 3 - engine is going to be replaced 
108000 mi

US $35
Rough idling - dealer couldn't replicate and no DTC warnings found 
95000 mi

US $700
Starter motor replacement 
86000 mi

US $3000
Warped valve covers, 
88000 mi

US $450
Faulty crank position sensor 
58000 mi

US $500
Valve cover gaskets. Coolant expansion tank. 
63000 mi

US $1300
water pump/thermostat replaced Replaced engine mount and snub mount. 
84000 mi

US $25
Coolant overfill tank cracked and leaking. 
84000 mi

US $150
Valve cover gaskets replaced. 
90000 mi

US $300
Accessory belt and tensioner bad. Both replaced 
103000 mi

US $121
Replaced: 079103483K (1) 079103483L (1) 077103487B (2) 079103487A (3) 049103491 (4) 
120502 mi

US $25
Fuel pump went bonkers, car wouldn't start, left me stranded @ grocery store for 20 mins before it allowed the car to start to limp home. The only forewarning was improved gas mileage the previous 3 fill-ups. Replaced with OEM B7 S4 exhaust hangers to pull muffler tips tighter to the bumper reliefs. 
127740 mi

US $138
A month prior to the repair date, the fuel level would not read more than 3/4 full, with the tank topped off. Culprit was the pass-side fuel level sending unit. Repair req'd using the fuel level down to be able to reach the sensor. 
128000 mi

US $64
Cyl 8 spark plug fouled with oil deposits. Cyl 7 also showed oil deposits, but not as much as cyl 8. 
114000 mi

US $3200
Radiator had slow leak. It was replaced. 
122500 mi

US $600
Noticed smell of burning oil. Valve cover gaskets leaking, had them replaced. 
129000 mi

US $100
Coolant reservoir tank cracked and leaking, replace failed part. 
64000 mi

US $150
Auxiliary radiator leak. 
52000 mi

US $350
Passenger side auxilary radiator.  
60000 mi

US $125
I noticed a leak in coolant, a pressure test was conducted but no leak found, found to be a possible overfill issue. 
66000 mi Oil/coolant leak. 
20000 mi Adjusted manifold bolt - fixed rough idle. no other problems in 4 years. great car 
86000 mi Valve cover gaskets. serpentine belt, pulley, & tensioner TSB 

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2004 Audi S4 2dr Convertible

340-horsepower 4.2L V8 6-speed shiftable automatic AWD

32000 mi

US $1106
Replace Valve Cover Gaskets. Parts $330 and $894 for 6 hours of labor. 
52700 mi

C $650
rough idle when engine warm, CEL on briefly then off, shop read engine codes, replaced battery and swapped ignition coils from one cylinder bank to the other, told to come back if problem returns. 
57640 mi

C $1356
replaced valve cover gaskets and half moon gaskets to repair oil leak DIY replacement of the coolant reservoir - there were stress fractures forming on the side of the tank. It wasn't leaking but would probably begin leaking within six months. Part cost $56.00 plus some rad fluid to replace the amount lost. 
66340 mi

C $380
front crank seal failed 
68200 mi crank seal failing again 
68200 mi

C $550
crank seal failure misdiagnosed - actual leak was from the oil filter canister connection to the block 
79120 mi

C $2522
Oil leaks from valve covers. Replaced gaskets and seals. The car still leaks oil. 
87420 mi

C $1400
Fuel pump failed. Replaced it and performed major service at the same time. The oil leak was minor and I stopped wasting time and money on this problem. The engine still dripped oil. V8 powered Audis of this era are notorious for this problem. 

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2004 Audi S4 2dr Convertible

340-horsepower 4.2L V8 6-speed manual AWD

45300 mi

US $800
engine manifold gasket leaking 
55500 mi

US $300
Also fixed leaky head gaskets. 
57700 mi

US $300
Whining noise from rear of car-fuel pump failing-fuel pump and fuel filter replaced. 
70000 mi

US $1900
Engine would not start. Engine speed sensor was replaced. 
81000 mi leaking radiator 
74000 mi Two out of eight of the ignition coils failed completely. Received a recall notice, but they failed before I could have the units replaced. 
103000 mi

US $350
Won't crank - corroded solenoid in starter motor... 
120000 mi

US $300
Slow responding Ox sensor - rough idle/rough accel 
131700 mi

US $6300
Misfire on one bank + Cam timing advanced error. Plastic timing chain tensioners broken/worn, cam tensioners worn. Pull engine and replace all 

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2004 Audi A4 4dr Wagon

turbocharged 170hp 1.8L I4 6-speed manual AWD

72000 mi

US $80
Snub (front) engine mount in need replacement. 
76000 mi

US $600
Crankcase oil breather hose was cracked, replaced. Coolant hose behind engine leaking, replaced. 
76000 mi

US $200
Crankcase position sensor needed replacement. 
132000 mi

US $250
Cam seals and valve cover gasket 
135000 mi

US $900
Cam seal leak, coolant flange leak at back of cyl head. 

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2004 Audi A4 4dr Wagon

turbocharged 170hp 1.8L I4 5-speed shiftable automatic AWD

81000 mi

US $600
Replaced vacuum tubing below intake manifold 
107000 mi

US $750
vacuum leak 
112000 mi

US $200
lack of heat. cooling system flushed, and thermostat replaced. heat is slightly better,but is still takes a long time to warm out, and it won't get hot. mechanic believes waterpump may be faulty. 
139000 mi

US $2500
losing coolant, had cracked head. Replaced head and did timing belt replacement at same time. 

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2004 Audi A4 4dr Wagon

220-horsepower 3.0L V6 6-speed manual AWD

153140 mi

C $2900
Car in for timing belt change, spark plugs and two broken parts that had the CEL on (about half the repair bill for regular maintenance) 

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2004 Audi A4 4dr Wagon

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

32000 mi camshaft position sensor 

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2004 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 6-speed shiftable CVT FWD

91140 mi Rattle detected when engine strained (like crawl at idle) Dealer diagnose as timing tensioner and quoted exorbitant amount to repair - still looking for cheaper alternatives 
93000 mi

R 10500
Timing belt and tensioner replaced by dealer. Rattle still present when engine under strain (like crawl at idle) but dealer states "not a problem" now although before repair the same noise was "a big problem" 
125200 mi

R 8000
Noticed oil leak, upon investigation saw cracked oil sump, welded shut during AC compressor replacement 
126860 mi

R 23999
Vehicle broke down next to the road with water pouring out at the bottom. Took it to the mechanic on a tow truck. After opening the top it turned out the timing belt broke, the cam shaft broke most of its teeth off and some valves were bent A couple of days after getting the car back from the time belt replacement it started juddering and missing under all acceleration. Drove to the mechanic who diagnosed a faulty coil. Replaced 
60000 mi Problem was detected when took in for a dealer bid on car. Camshaft tensioner seals are leaking. Estimated cost $650. Not a serious issue, but car now requires the addition of 1 qrt of oil every 4,000 miles. I have since sold car to private party. 
100000 mi Bought vehicle with engine light on and air bag on. Took to dealer to get service records and found recall involving coil packs. Dealer replaced all 4 plugs no charge. Also found p0 420 got a quote for 1350 catalytic converter 
104000 mi

US $60
fuel pump noisey due to bad fuel filter. fuel pump making loud humming/whine sound 
110300 mi

US $125
EPC light and Check Engine P0102. Changed MAF Sensor and Vaccum hose replaced 
138000 mi

US $156
Changed both motor mounts and snub mount 
152300 mi

US $750
Egr valve (Combi Valve failed). Secondary air pump failed. CVT slight shudder, need oil replaced. 
29000 mi transmission control module replaced under warranty 

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2004 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 6-speed manual AWD

169260 mi

A $350
Vehicle was over revving and had erratic idle, also blew oil all over side of engine. I replaced, PCV, breather tube, vacuum hoses, thermostat, top radiator hose and balance hose. Had erratic engine idle and over revving problems, coils were replaced by dealer because of recall. Did not fix erratic idle or over revving. Had over revving and erratic idle issue when purchased. All other attempts to fix made no difference. Finally crank position sensor failed. Replaced part, erratic idle and over revving issue gone. 
61060 mi Original factory coil packs failed and had to be replaced 
63860 mi

C $200
Replaced crankshaft sensor 
77460 mi

C $700
Coolant temperature sensor intermittently not working 
81840 mi

C $350
Replaced rusted exhaust flex pipe 
86000 mi

US $835
Rear coolant flange leaking. 
96000 mi

US $100
Coolant leak at thermostat housing. 
99300 mi

US $2000
Clutch replaced due to being worn at age. Normal. 
180000 mi

US $900
- Both Electrical Cooling Fans were bad. This in turn destroyed the electrical cooling fan module. 
207000 mi

US $380
- rear of the engine thermostat clip failure: replaced - radiator developing crack: replaced  - crank case breather tube broken: crappy vw plastic: replaced 
218000 mi

US $200
Crank case ventilation failed. This has thrown engine to missfire and throw map controlled coolant thermostat shorted to plus error code. Replaced crank case ventilation parts, reset ecm, all good. 
78300 mi

US $350
Plastic thermostat housing cracked. Difficult to duplitcate - only "seemed" to leak when cold. Driving dried the leaked coolant so it was difficult to trace. 
86000 mi

US $25
valve cover gasket was leaking 
97000 mi

US $200
Engine running lean due to vacuum leak. Split hard line on crankcase breather system at the back of the head. Replaced entire section from suction valve to block. 
105000 mi

US $45
Leaking thermostat housing. Shop replaced unit under warranty as it had been changed recently 
146000 mi

US $250
Rear coolant flange leaking 
149000 mi

US $450
No heat- heater core clogged. Flushed and thermostat housing replaced. Required return trip since initial installation was faulty. 
169500 mi

US $700
Heater core clogged beyond flush. Replaced with OEM. 
182000 mi

US $25
Lack of heat, flushed heater core, found not clogged, performed coolant flush, bled system refilled with new coolant. 
183000 mi

US $80
Engine Mounts leaking. Replaced with Corteco brand B5 S4 mounts 
88300 mi

US $190
Replaced the Fuel pump that was dying. 
94000 mi

US $250
Replaced the Variable Cam Timing Solenoid and tensioner assembly. 
94700 mi

US $50
Replaced Oil Cooler that was leaking oil into the coolant system. 
103000 mi

US $120
Replaced radiator that had a pinhole leak. 
122000 mi

US $300
Fuel Pump needed to be replaced 
125300 mi

US $100
rear coolant flange 
126000 mi

US $100
Water pump was leaking, replaced. 
148000 mi

US $200
Engine mounts, transmission mount, and valve cover gasket 
83000 mi

US $1700
Valve cover and camshaft gaskets were leaking and had to be replaced. 
83000 mi

US $110
MAF sensor replaced 
95000 mi

US $100
Replaced camshaft position sensor and boost control solenoid 
100000 mi

US $500
boost issue traced to broken wire to boost control solenoid 
115000 mi

US $750
coolant flange replaced 
117000 mi

US $1500
new clutch installation 
121000 mi

US $200
dead engine position sensor 
124000 mi

US $1200
leaking water pump 
133000 mi

US $500
Injector seals were leaking 
125000 mi

US $425
Fuel pump blew...towed in Sunday, replaced Monday 
132000 mi

US $1020
coolant leak/coolant temperature sender unit replaced 
152300 mi

US $500
Oil leak 
127680 mi

C $4
coolant leak at back of head, was coolant temp sender O ring, read on internet a real pain to do, only took 40 minutes and cost $4.09 with tax for a new O ring and C clip 
137000 mi

C $40
4 engine codes, engine missing, poor excelleration, dont use E3 spark plugs, less than a year old, junk on turbo cars. 
151240 mi

C $300
Head gasket leaking, replaced as well as valve seals and cam seals Oil sensor replaced as gone bad Breather lines cleaned as easy to get at while apart as well as oil cooler or ring 
172980 mi

C $300
Water pump leaking, replaced. Timing belt done at same time as it will be due in another 20000km. 

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2004 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed shiftable automatic AWD

121000 mi

US $200
Flush and purge heat exchanger 
126300 mi

US $25
Harmonic balancer replaced 
133000 mi

US $50
Turbo Wastegate Actuator 
50000 mi

US $1090
needed new water pump as fluid was leaking. got new timing belt too! 
51000 mi

US $250
coolant temp thermostat replaced 
67000 mi

US $200
Fuel pump died, pump was replaced and fuel filter was replaced 
71000 mi

US $70
Leaking hoses to be replaced 
66340 mi

C $220
Replace coolant flange and temp sensor 
119660 mi

C $265
valve cover gasket was replaced 
121520 mi

C $2000
Replaced head gasket to fix a bad oil leak from the passenger side, rear corner of the engine block. Also timing belt, coolant pump as PM. 
142600 mi

C $150
The flex pipe from the exhaust down pipe ruptured and had to be replaced. 
170000 mi

US $225
Replace PCV hoses Leaking coolant flange and heater hose coupler 
90000 mi

US $220
No start, no CEL. fuel pump and filter changed by owner. shop quote $1200, my cost parts $220 PCV valve gave loud whine like the fan belt had failed. Got a low oil pressure light - took to shop diagnosed engine sludge build up. De-Sludged sump crankcase cover, changed PCV valve and some of the hoses. Total cost $996 Crankcase position sensor failed. Car would not start, and gave codes suggesting a problem with this (CKP). Shop quote $200. my cost from ebay $16, and 2 hours labor 
100000 mi

US $62
Engine none start, towed to garage, started next day ... garage said no compression due to flooding caused non start.... 
108000 mi

US $510
The coolant flange went again, didn't want to deal with it, as my other car was in the shop as well so had shop tow it, and do the work. 
110000 mi

US $50
Oil Dipstick tube disintegrated when I went to check the fluids, when the car wouldn't start, just like last year ... 
62000 mi Fuel pump died. Replaced under CPO warranty 
64000 mi

US $50
Leaking bleeder screw on hard coolant pipe. Leaking cam chain tensioner/valve cover gaskets. Finally after 4th time mentioning it, do they consider it not normal and repair. 
95000 mi

US $100
bleeder check valve for the breather system and a couple of molded hoses were cracked. Caused rough running and check engine light, lean fuel codes.  
104400 mi

US $1100
bad ignition coils and fuel pump 
110000 mi

US $800
vacuum leak, check valve failures 
68000 mi

US $35
Ignition Coil on Cylinder 2 failed. Old coil was revision "R" - replaced with like item. 
69000 mi

US $170
Throttle body hose popped off. Car wouldn't run. Fouled spark plugs had to be replaced as side effect. 
73000 mi

US $650
Several minor vacuum hoses needed replaced due to crack. 
126000 mi

US $1000
Oil dipstick tube broken ($20) Valve Gasket Cover cracked ($300) 
87000 mi

US $500
Radiator fan came loose. Cut into radiator. 
113000 mi

US $400
Auxiliary fan broke off of electrical motor. New motor and fan replaced. Coolant flange behind the block was leaking water. 
63500 mi

US $30
Replace failed coil. 
68000 mi

US $520
Fuel Pump Failed. 
107000 mi

US $1700
Blown head gasket 
123000 mi

US $250
Turbo inlet hose split. 
64000 mi

US $800
Fuel pumps required replacing 
94000 mi

US $800
Slight coolent system leak. Cracked resevoir. 
95000 mi

US $500
Oil leak cause coil pack failure. 
53000 mi

US $100
Coil Packs Failed 

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2004 Audi A4 4dr Sedan

220-horsepower 3.0L V6 6-speed manual AWD

111000 mi

US $1500
Water pump failure although it had been replaced 30,000 miles prior. Timing belt also replaced early. 
52000 mi -Engine Misfire. Dealer replaced entire engine block under warrante for free. -Brake light switch error required replacement. 
74000 mi

US $450
fuel pump died 
95700 mi

US $1500
Water pump replacement with timing belt. 
112000 mi

US $650
dead fuel pump 

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2004 Audi A4 4dr Sedan

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

70360 mi

$300
Cylinder misfire and one coil pack was found to be faulty and then replaced 
41000 mi

US $1041
Sudden fuel pump failure 

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2004 Audi A4 2dr Convertible

turbocharged 170hp 1.8L I4 6-speed shiftable CVT FWD

70000 mi engine check light on highway, limp mode for one minute, slowed, then light stopped, code shows misfires but coils just replaced as part of recall. 
75500 mi

US $145
replaced transmission mount 
79000 mi

US $500
engine coolant temp. sensor 
81300 mi crankcase breather system faulty causing oil consumption 
86000 mi Scored cylinder walls, resulting in oil consumption, new factory short block under warranty as this was one of the factory covered 1.8t sludge cars. 
48000 mi replaced water pump due to wetness on outside of pump. replaced timing belt because water pump was out. 
39000 mi

US $180
Car would appear to studder and then stall when coming to a stop occasionally, engine would not rev past 1300 when accelerator pressed, and car would not move, drive selection (PRNDS) on instrument gauge would all be highlighted at once. 
42500 mi

US $100
Ignition Coils failed, replaced under Audi Ignition coil service campaign Cam Adjuster Seals leaking 
38000 mi

US $1900
Had to replace the transmission TCM unit on a CVT at only 37k 
48000 mi Warranty exchange on the TCM 

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2004 Audi A4 2dr Convertible

220-horsepower 3.0L V6 6-speed shiftable CVT FWD

61000 mi

US $1600
Reverse flashing gear selection indicators. Intermittent, would reset when car restarted. Diagnosed as Faulty CVT control computer. 
64500 mi

US $1800
Gear Selector lights flashing, Replace transmission computer and reprogram 

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2004 Audi A4 2dr Convertible

220-horsepower 3.0L V6 5-speed shiftable automatic AWD

99000 mi

US $320
Needed new oil pressure and oil level sensor 

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2004 Audi A4 / S4 / RS4

Engine not specified

156000 mi

$600
Changing the valve seals. Only natural for an engine that's been running this flawlessly for so long. 
34720 mi

C $300
Computer lost settings, had to be reflashed. 
113000 mi Told I need a new engine because of excessive valve wear. Note: Dealer performed ALL scheduled maintenance on this car. Audi refused to particpate in the $10K cost, so I traded car for a Prius. 

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2004 Audi A4 / S4 / RS4 4-door

turbocharged 6-cylinder diesel CVT 2WD

84000 mi Glow plugs failed Drive belt about the fall off, bearings failed in belt guide and tensioner 
105000 mi

£120
reservoir bottle had split. Had to be replaced 

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2004 Audi A4 / S4 / RS4 Engine Problems

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