| 1 | 0 | 3 | 4 | 3 | 4 |
BMW Z3 repairs by problem area
Engine (46%)
Transmission and Drivetrain (6%)
Brakes and Traction Control (5%)
Suspension and Steering (11%)
Electrical and Air Conditioning (19%)
Paint, Rust, Leaks, Rattles, and Trim (7%)
Other (7%)
Chart based on 317 repairs.
BMW Z3 engine repair cost distribution
$2500+ (6%)
$1000 - $2499 (10%)
$500 - $999 (15%)
$100 - $499 (43%)
< $100 (26%)
Chart based on 134 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2002 BMW Z3 2dr Convertible
315-horsepower 3.2L I6 5-speed manual RWD
| 15000 mi US $150 |
replaced exhaust cam position sensor |
2001 BMW Z3 2dr Hatch
315-horsepower 3.2L I6 5-speed manual RWD
| 73000 mi US $5675 |
Connecting rod bearings, rear sub frame reinforcement, engine mounts, fuel filter, oil pump, control arm bushings, extend O2 sensors and EGT, install euro headers and section 1 exhaust with cats, oil change, transmission and diff fluid |
| 34700 mi US $250 |
Idler pulleys (2) were worn out. |
| 38200 mi US $10000 |
New motor in total |
2001 BMW Z3 2dr Hatch
225-horsepower 3.0L I6 5-speed shiftable automatic RWD
| 59000 mi US $250 |
Check engine light: air intake hose cracked and lean fuel mi xture error code |
| 86000 mi US $2500 |
Head gasket and radiator |
| 50300 mi US $350 |
Thermostat and housing |
| 170000 mi US $300 |
A/C condenser fan failed. Replaced. |
| 70000 mi US $450 |
Squeaky tension pulleys. |
2001 BMW Z3 2dr Hatch
225-horsepower 3.0L I6 5-speed manual RWD
| 109000 mi US $120 |
failure of thermostat housing w/ total loss of coolant. Replaced housing, thermostat, upper coolant hose, coolant |
| 115000 mi US $1800 |
Vacuum leaks (multiple)--vacuum brake booster hose, air filter box seals. Heater hoses replaced. |
| 124400 mi US $700 |
heater tubes leaking at engine |
| 136000 mi US $1000 |
Clutch replacement. The lining got thin and then cracked. |
| 160000 mi US $1000 |
Leak detection pump replacement |
| 161 mi US $3200 |
failure of heater hose connector/total loss of coolant Replaces all heating/cooling system components: connectors, hoses, water pump. etc. Except radiator. |
| 106000 mi US $1200 |
Oil separator and related problems |
| 106000 mi US $840 |
Key could not be withdrawn from ignition switch when car shut off. Cylinder replaced. |
| 50000 mi US $1000 |
Replaced leaking radiator, hoses, upgraded water pump, and replaced idler belt pullies. |
| 126000 mi US $44 |
Traced an oil leak to valve cover gasket during a previous inspection. Replaced gasket and one head bolt I accidentally stripped. All four O2 sensors replaced because of CEL and codes. |
| 160000 mi US $1284 |
DISA valve replaced Fan clutch replaced |
| 174915 mi US $249 |
Oil pan gasket, oil filter housing gasket, engine oil service, radiator replaced |
2001 BMW Z3 2dr Convertible
315-horsepower 3.2L I6 5-speed manual RWD
| 62500 mi US $80 |
engine misfire, replaced one of the 6 ignition coils. |
| 88000 mi US $200 |
Not running on all six cylinders. Replaced coil pack. Feared it was VANOS again, which was $4,500 last time. |
| 73500 mi US $370 |
Leak in line to oil pressure sensor |
2001 BMW Z3 2dr Convertible
225-horsepower 3.0L I6 5-speed shiftable automatic RWD
| 122000 mi US $70 |
Thermostat failed so heater did not provide much heat |
| 41300 mi US $75 |
MAF was replaced |
2001 BMW Z3 2dr Convertible
225-horsepower 3.0L I6 5-speed manual RWD
| 81000 mi US $45 |
Had a small coolant hose on the top of the engine crack due to age. Brittle plastic. Cost me $45 for the part and did the work myself. More of a frustration trying to find the leak than anything else. |
| 87000 mi US $250 |
Replaced leaking valve cover gasket. |
| 88000 mi US $275 |
Replaced valve cover gasket and gromets. Was leaking oil onto exhaust header, creating smoke/smell |
| 52700 mi US $78 |
Thermostat leaking at electrical connector, slow engine warmup, OBD showing P1619 code - MAP Cooling Control Circuit Signal Low. Replaced leaking expansion tank cap. |
| 54200 mi US $169 |
Leaking 2nd generation water pump with metal impeller, replaced with 3rd generation OEM water pump with composite impeller. Noisy accessory belt tensioner bearing, replaced A/C belt tensioner and main belt tensioner, replaced both drive belts. |
| 83500 mi US $86 |
Engine misfiring, #2 plug wet, moved #2 coil to #5 cylinder, car displayed P1351 code for cylinder 5 misfire, diagnosed as bad ignition coil, replaced coil, repair completed. |
| 92000 mi US $31 |
Check engine light, hunting when returning to idle, stalling with a/c on and returning to idle. Suspected air leak between MAF sensor and intake, found cracked boot just past MAF sensor. Replaced boot, problem solved. |
| 60300 mi US $1200 |
CEL was for torn intake plumbing; replaced. Valve cover gasket replaced. |
| 64000 mi US $220 |
CEL illuminated. Codes indicated lean mixture, misfire. Plastic tube (split) between MAF and throttle body had been replaced previously. This time replaced intake airflow adjuster, which varies runner length. |
| 60200 mi US $650 |
thermostat stuck partially open, causing car to run cold. Recommendation for this car at this mileage is to replace all cooling system components before failure, so I did: radiator, thermostat, water pump, exp. tank, hoses and belts |
| 71000 mi US $150 |
intake camshaft position sensor failed |
| 72300 mi US $100 |
exhaust camshaft position sensor failed and was replaed |
| 101000 mi US $60 |
antifreeze leak at thermostat, there was a scratch on the flange. |
| 80772 mi US $854 |
Door locks were not functioning, traction control had become disabled and a hard start was present. Fuse replaced, steering angle sensor replaced, cam shaft sensor replaced. |
| 81004 mi US $328 |
Replaced intake cam shaft sensor, due to car having a hard start |
| 87120 mi US $276 |
fuel pressure/filter regulator was replaced, window regulators were replaced in both windows |
| 90406 mi US $966 |
fuse replaced for central locking, recoded vehicle for steering angle fault, lubricated doors and latches, replaced drive belt tensioner and drive belt. |
| 95024 mi US $2845 |
several attempts made to replace dme with one programmed by third party dealer, eventually replaced with oem dme. |
| 81000 mi US $900 |
Replacement of CCV (crank case vent valve) and all hoses (5). |
| 83080 mi C $1300 |
Change valve cover gasket. Change the 2 belts bender. |
| 83700 mi C $250 |
Expansion tank craked |
| 84940 mi C $105 |
PCode P0344, intake camshaft position sensor, change it. |
| 85560 mi | PCode P0171 and P0174, repair intake air duct |
2001 BMW Z3 2dr Convertible
184-horsepower 2.5L I6 5-speed shiftable automatic RWD
| 110440 mi C $200 |
Intake lower boot, and CCV replaced |
| 112320 mi | Bolts for Bracket for muffler fell off so installed new ones |
| 75000 mi US $6000 |
lean codes- wouldn't pass CA smog check- |
| 84300 mi US $1120 |
Accessory belts and tensioners, ideler pulley replaced to end squeaking noise from engine, particularly when cold. |
| 86000 mi US $1770 |
Replacement of the water pump and thermostat as they were leaking. Also replaced hoses as they were original in the car |
| 166000 mi US $250 |
Boot conennecting the MAF Sensor bad as was left side crank sensor! |
| 65000 mi US $160 |
Replaced exhaust camshaft position sensor and reset the computer |
2001 BMW Z3 2dr Convertible
184-horsepower 2.5L I6 5-speed manual RWD
| 74000 mi US $50 |
I FILLED THE RADIATOR TO FULL CAUSING THE PLASTIC FILL TANK TO SPLIT. BOUGHT REPLACEMENT ON EBAY AND INSTALLED,I NOW UNDERSTAND NOT TO OVERFILL UNIT. CAR DRIVEN 120 MILES TRIP WITH NO PROBLEMS. |
| 26660 mi C $125 |
The car gave a fault code that showed the front camshaft sensor. Checked with ODB2 code reader and verified the issue. Replaced camshaft sensor and rest code. All works 100% now. |
2001 BMW Z3 2-door
6-cylinder automatic 2WD
| 69700 mi US $900 |
engine burning oil. Oil getting past valve stems. |
| 73780 mi $550 |
Two coils needed to be replaced |
| 86800 mi $500 |
oil leak on filter housing had gasket replaced thermostat not closing fully, so replaced. |
| 88120 mi $500 |
Perished hoses for idle valve allowing air to be stucked in to intake system causing very rough running |
2000 BMW Z3 2dr Hatch
240-horsepower 3.2L I6 5-speed manual RWD
| 46000 mi US $80 |
Stewart water pump was leaking from the shaft. It was only one year old. Since it has a lifetime warranty, it was returned and a new one was put in. I still had to pay for the labor and anti-freeze. |
2000 BMW Z3 2dr Hatch
170-horsepower 2.5L I6 4-speed automatic RWD
| 94000 mi US $600 |
Oil filter housing gasket was broken and oil was leaking. |
2000 BMW Z3 2dr Convertible
240-horsepower 3.2L I6 5-speed manual RWD
| 99000 mi US $40 |
Replaced Oil Pan Gasket |
| 117000 mi US $300 |
Failing ignition coils were replaced. I'm impressed that these coils lasted 22 years (from the factory). Only one of them failed. Replaced them all but kept the rest five of them (inline 6 engine) for future emergency use. |
| 105000 mi US $1395 |
Belts and some pulleys also replaced because of noise/wear. |
| 108200 mi US $380 |
oil filter housing replaced (leaking) |
| 132356 mi US $310 |
thermostat & connection flange replaced |
| 134286 mi US $688 |
Coolant leak, radiator replaced |
| 69000 mi | Hesitation on light throttle application from steady state speed. Cleaned Throttle Body, MAF Sensor, Oil Seperator and Idle Air Controller |
| 47000 mi US $200 |
State Inspection, Diagnose oil leak |
| 48000 mi US $850 |
Oil pan gasket. oil separator valve, replace all oil lines for supercharger, flush brake fluid(clutch not working properly), spark plugs |
| 51000 mi US $20 |
2 bolts came loose on the valve cover causing car to leak a lot of oil. I also chose to replace an air intake nipple for the supercharger |
| 51000 mi US $120 |
Idle control valve was diagonised as being bad. CEL came on 1 week later |
| 52000 mi US $250 |
Crank keyway sheared off |
| 52000 mi | Radiator has pin hole in it caused by keyway failure |
| 56000 mi US $155 |
Sheared crank pulley bolt and snapped the crank keyway |
| 77700 mi US $300 |
valve cover gasket |
| 98000 mi | Replaced an oil pressure sensor. |
| 144000 mi US $1000 |
Water pump was leaking and engine belts beginning to fray. Had them replaced. |
2000 BMW Z3 2dr Convertible
193-horsepower 2.8L I6 5-speed manual RWD
| 50000 mi US $920 |
Replaced fan blade with clutch, water pump, fan shroud, thermostat. |
| 52200 mi US $300 |
Replacement of intake camshaft sensor. |
2000 BMW Z3 2dr Convertible
193-horsepower 2.8L I6 4-speed automatic RWD
| 154000 mi US $47 |
Water pump was replaced Exhast cam sensor failed |
| 157000 mi US $65 |
Replaced the valve cover gasket due to oil leaks. |
| 157000 mi US $60 |
leak in thermostat housing |
| 165000 mi US $200 |
Check engine light came on replaced o2 sensors and valve cover |
| 167000 mi US $157 |
OB2 code 1477 LDP relay not openning. Removed LDP tested and ordered replacment. |
| 168000 mi US $2500 |
Bad vac leak had to replace oil separator, and manifold runner valve |
| 168000 mi US $750 |
Check engine light, misses, hard hot starts. BAD PLUG and COIL PACK |
| 124000 mi US $280 |
replaced radiator |
| 128000 mi US $300 |
oil pan gasket replaced |
2000 BMW Z3 2dr Convertible
170-horsepower 2.5L I6 5-speed manual RWD
| 40000 mi US $100 |
Replaced stuck thermostat. |
| 152000 mi US $28 |
Replaced cracked air intake boot |
| 66600 mi US $500 |
water pump failed |
| 109000 mi | Expansion tank was leaking; replaced and coolant flushed. Valve cover gasket, spark plugs, and VANOS seals replaced. |
| 109000 mi | Rubber upper air intake boot was torn (common on BMWs malice replaced with new one. |
| 102000 mi US $90 |
Coolant expansion tank leaked. Replaced with the genuine BMW one. |
| 109000 mi US $200 |
One of the coils has died. Replaced all six coils, plus all six spark plugs, plus valve cover gasket |
2000 BMW Z3 2dr Convertible
170-horsepower 2.5L I6 4-speed automatic RWD
| 85000 mi US $490 |
The repair was for drive belts and tensioners. |
| 97000 mi US $225 |
Leaking Valve Cover Gasket. There should be an option for this under powertrain. It was not a massive leak, just a small one that caused an unpleasant burning oil smell in the engine bay/ AC vents. |
| 98000 mi US $500 |
Replace radiator, replace water pump Replace radiator, replace water pump |
| 46200 mi US $320 |
PCV Valve diaphragm failed. Installed Oil separator kit and crankcase vent hose. |
| 51000 mi US $500 |
MAF failed |
| 86000 mi US $200 |
Leaking oil filter housing. Worn air intake tubes and drive belts replaced. Worn hoses and thermostat replaced. |
| 102000 mi US $500 |
Vanos system failure - replaced seals. 2 ignition coils failed - misfire codes |
| 103000 mi US $60 |
vanos oil line replaced due to leak |
| 103000 mi US $100 |
valve cover gasket leaking - valve cover gasket replaced. coolant expansion tank leaking - expansion tank replaced |
| 110300 mi US $250 |
replaced purge control vlave |
| 120000 mi US $2500 |
replaced wheel sensors,replaced purge control valve,replaced front calipers,replaced shocks & struts and abs relay. ABS still not functional. Replaced rear window & repairing some roof titching. |
| 121100 mi US $20 |
muffler hanger broke from chassis weld |
| 75000 mi US $302 |
Belt tensioner needs replaced within the next 10K miles. Only retrofit parts exist in dealer inventory. |
| 76000 mi US $400 |
Belt tensioner noise. |
| 149000 mi US $150 |
oil leak on valve cover. Replaced the gasket. Changed spark plugs and fuel and air filters. replacing old coolant expansion tank and several coolant hoses as preventative maintenance, at next Oil change. |
2000 BMW Z3 2-door
6-cylinder manual 2WD
| 141980 mi | return pipe from the radiator to the coolant tank broke while removing the intake box. temporarily fixed then replaced. |
| 150660 mi €130 |
cracked expansion tank due to the hood being set too low by the shop. |
| 156240 mi €300 |
replaced the thermostat which was leaking, changed the water pump (wear item on these cars) and 3 water hoses |
| 92000 mi US $1300 |
VANOS unit failed, as did cam sensor. Both parts were replaced. Also, clutch was replaced |
| 95000 mi | Replaced airbox-to-MAF hose (was cracked). |
1999 BMW Z3
Engine not specified
| 53000 mi US $200 |
The intake boot from the air cleaner had a hidden crack and was letting "false air" into the engine screwing up emissions readings. I failed my emissions test. |
| 81000 mi US $250 |
leak traced to valve cover/gasket - R&R |
1999 BMW Z3 2-door
6-cylinder manual 2WD
| 139000 mi US $250 |
Water pump leak. Replaced water pump, thermostat and housing with upgraded parts. |
| 130000 mi US $200 |
valve cover gasket, belts |
| 134000 mi US $200 |
Gasket leak where oil filter housing enters block. Have to remove a lot of things to address it. |
| 207000 mi US $1150 |
ignition coils and spark plugs |
| 210000 mi US $576 |
radiator core and expansion tank |
| 91000 mi US $850 |
Microfracture in radiator that was initially misdiagnosed as only a broken temperature gauge |
1998 BMW Z3 2-door
6-cylinder manual 2WD
| 44000 mi US $250 |
secondary air pump replaced main air intake replaced |
1997 BMW Z3 2-door
4-cylinder manual 2WD
| 55000 mi US $300 |
Secondary air fan and check valve were replaced. |
| 56000 mi US $250 |
Replace water pump and thermostat. Water pump failed |
| 57000 mi US $1300 |
O2 sensor CEL - was a vacuum leak from a worn gasket in the air intake manifold, coupled with faulty O2 sensor. Also cleared out degraded insulation in air box. Lots of diagnosis time/smoking the car to find the vacuum leak. |
See TrueDelta's information for all BMW models.
