62 TrueDelta members own (or used to own) a 2006 BMW X3. 19 of these members
(30.6%) have reported engine repairs for their car.
A total of 33 engine repairs to 2006 BMW X3s--an average of 0.5 per
vehicle--have been reported.
coolant level low for no clear reason; dealer refilled.
Coolant level keeps falling low. Coolant expansion tank replaced. Still dropping.
Coolant level kept falling despite refilling. AC Evaporator found to be leaky. Too expensive ($2K-$3K) to replace.
Coolant leak never fixed.
Had problems with hot starts. Dealer identified as bad fuel pump. During repair, dealer found that fuel check valve/filter was also bad. Fuel pump was covered under warranty ($50 deductible), valve/filter cost $330 P&L.
Crankcase ventilation valve went out. Dealer replaced valve and attached hoses.
I had an oil leak. My oil pan was damaged. That had to be replaced.
Check engine light came on, verified fuel trims, off a little -
added injector cleaner and told the wife to stop putting around in her car, to drive it like she stole it. It has been very cold this year and she drives 2 miles to work and back.
trip 2 yellowstone,halfway,cel,evap code,finished trip,major snowstorm,lots of fun,car great,chked out,small tear intake boot to air cleaner,replaced,all good,i am a ase master,20+ yrs,easy repair for me-not for normal folks,
still love x3
harsh shifting in standard automatic mode - especially from 3rd to fourth gear - not present in steptronic mode.
bad O2 sensor
faulty fuel injector causing hesitation at wide open throttle. One replaced
DISA valve failed, causing lean condition report from both O2 sensors but a normal condition from the MAF, so it threw two faults - P0170 and P0171
"Check Engine Soon" light came on so I had a diagnostic-check performed ($157.00). DISA valve is cracked and leaking air-needs to be replaced ($250.00 plus $262.00 labor).
SES light came on. Lean Code was reported. Smoke Test performed to check for leaks. None found. Cleaned Mass Air Flow sensor. Light went out, readings normal. However - it is back on again after 300 miles. Back to the shop it goes!
Transfer Case and Engine had multiple oil leaks. Losing a quart of oil a day. Warranty refused to pay, even though I had a Powertrain Warranty.