Q: Q: Rough idle when cold

asked by on

Hello there, thank you for asking about your 1997 BMW 760Li V-12. My car has 168,500 miles on it. It has a very rough idle when it’s cold and it stalls. After it’s warmed up it will delay and falter under light throttle. My check engine light never came on the first 12 times it did this. Do you know how I can fix this?

Hello there, thank you for asking about your 1997 BMW 760Li. Your problem has many potential causes. It could be anything from a failed mass airflow sensor to a worn fuel pump. The first step is to retrieve the diagnostic trouble codes associated with the Check Engine Light. These codes serve as a starting point for any further diagnostics. I recommend having a professional, such as one from YourMechanic, diagnose your BMW by retrieving trouble codes.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Q: Rough idle when cold

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Q: Hard to turn steering wheel

It sounds like you are low on power steering fluid; power steering pumps are very noisy when they are low on fluid. You will also lack power assist. Check the reservoir with the engine off; if the fluid level is...

Q: Engine power loss and odor from the exhaust

Hello. The symptoms you are experiencing can be caused by a wide variety of issues. It may be possible that the vehicle has suffered a component failure, perhaps at the fuel or ignition systems, which is setting off the light...

Q: Hood latch stuck

If your car's hood latch is stuck, that may be a sign that the latches have failed, or perhaps the cable that unlocks it has snapped. As a problem like this may not be immediately obvious to diagnose, I would...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.