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Audi A4 / S4 / RS4 Engine Problems and Repair Histories

2537 TrueDelta members own a 2000 or newer Audi A4 / S4 / RS4. 852 of these members (33.6%) have reported engine repairs for their car. A total of 1555 engine repairs to Audi A4 / S4 / RS4s--an average of 0.6 per vehicle--have been reported.

See our lemon odds and nada odds page for more details. To see how frequently Audi A4 / S4 / RS4 problems occur, check out our car reliability stats.

Want to read about specific problems behind these stats? Jump to the Audi A4 / S4 / RS4 problem descriptions below.

Don't infer Audi A4 / S4 / RS4 problem frequency from what you see on this page. Many lucky owners have had no repairs, and their cars are not shown.

Percentage of Audi A4 / S4 / RS4 repairs by problem area

44% of the Audi A4 / S4 / RS4 repairs were to the engine, 7% to the transmission, 6% to the brakes, 11% to the suspension, 20% to the electrical or air-conditioning systems, 7% to the body and trim, and 5% to other areas of the vehicle.

Chart based on 3511 repairs.

Audi A4 / S4 / RS4 engine repair cost distribution

Of the Audi A4 / S4 / RS4 engine repairs that were not covered by warranty and were not do-it-yourself repairs, 8% cost less than $100, 41% between $100 and $499, 24% between $500 and $999, 19% between $1000 and $2499, and 8% more than $2500.

Chart based on 721 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
Non-members can see only ten Audi A4 / S4 / RS4 Engine problems and repair histories. Log in or join us to see them all.
Repair costs are in local units.

2007 Audi A4 4dr Wagon

turbocharged 200hp 2.0L I4 6-speed manual AWD

Audi A4 in California, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Feb 2007 2000    
5000 0 Car had start problems in the morning. Fuel line pressure monitor had to be replaced.  
 

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2006 Audi A4 4dr Sedan

turbocharged 200hp 2.0L I4 6-speed shiftable automatic AWD

Audi A4 in Ontario, Canada
Date Odometer
(in miles)
Cost Problem/Repair Description
Dec 2006    
0 Accelerating on highway, power would cut for a couple of seconds and then resume. Check engine light appeared. Dealer is replacing camshaft and associated parts. 
0 Fixed Issue from december. Received another check engine light, result was a misfire they replaced one of the coils. 
55800 0 Check engine light, boost control valve for turbo replaced 
81840 0 Car loses power when accelerating above a speed of 70km/h. Brought to dealer, was the same issue with the camshaft follower being worn and a new camshaft parts. All under an extended warranty by audi to all cars up to 160000km/10 years. 
105400  

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2003 Audi A4

Engine not specified

Audi A4 in Texas, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Nov 2006 42000    
43000 0 Carmax told me I had engine sludge. Audi mechanic looked at oil cap, said it was bad sludge, but after two days with my car they said it was normal. Also replaced cupholder, battery, ball joint, and flushed brake fluid. 
 

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2003 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed manual FWD

Audi A4 in Texas, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Oct 2006 49000    
50000 0 Misfire when cold 
52000 0 Misfire at startup 
 

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2002 Audi A4 4dr Wagon

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

Audi A4 in Virginia, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Sep 2006 67000    
71000 100 Catalytic converter tripped CEL. Mechanic did not road test after reset because of icy road conditions, but CEL has not come back on. 
 

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2002 Audi A4 4dr Sedan

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

Audi A4 in Tennessee, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Sep 2006 33000    
41000 800 Leaky gasket caused oil to collect around spark plugs and coil packs. 
55000 55 thermostat 
 

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2002 Audi A4 4dr Sedan

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

Audi A4 in California, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Dec 2006 94000    
97000 1800 engine mounts replaced water pump causing coolant leak.. replaced waterpump and re-did timing belt service 
113000 200 Catalytic converter replaced. 
145000 650 Leak at turbo 
 

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2002 Audi A4 4dr Sedan

turbocharged 170hp 1.8L I4 5-speed manual AWD

Audi A4 in Pennsylvania, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Dec 2006 62000    
69000 50 rough idle due to the front O2 sensor. 
69000 367 intermitant rough idle. dealer replaced the MAF under warantee but the problem still exist. they cleaned the throttle at cost to me. replaced the skeleton for the lumbar in the driver's seat. 
73000 260 -O2 sensor once again. -spark plugs for some strange reason were red at the tips. -rough idle 
 

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2002 Audi A4 4-door

turbocharged 6-cylinder automatic AWD

Audi A4 in Virginia, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Feb 2007 40000    
41000 50 It took 3 trips to accurately diagnose the problem as a pinhole in the cylinder head. The repair was JB Weld and is currently holding although I don't feel that it was appropriate. I think the head should have been replaced. 
 

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2001.5 Audi A4 4dr Wagon

turbocharged 250hp 2.7L V6 6-speed manual AWD

Audi A4 in Florida, United States
Date Odometer
(in miles)
Cost Problem/Repair Description
Sep 2006 37000    
38000 50 Valve cover gasket was bad, causing leak to occur. 
41000 80 Fuel gauge sender unit went bad 
44000 0 Broken vacuum hose 
46000 600 Camshaft tensioner seal leaking oil. Replaced seal. 
46000 300 Exhaust Gas Temperature Sensor. 
51000 700 Bad temperature sending unit. 
59000 600 Replaced auxillary water pump (sometimes called after run cooling pump) Cracked coolant tank replaced 
60000 300 Replaced whining fuel pump 
69000 25 Coolant temperature sensor bad. Replaced temperature sensor. Exhibited bad starting as source of problem. 
81000  

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