1997 BMW 540i Q&A
1997 BMW 540i Question: rough running bmw 540i
You really need to get it diagnosed by a BMW specialty shop to see what causing the problems. They should be able to pull out diagnostic trouble codes from the affected modules and be able to estimate the parts and repair cost for you. Zee - ZeeTech
PCV valve on back of intake manifold. common fault. diagnostic codes won't show for this fault and unless techi knows these cars he won't know what the problem is, - autoeuro
I have a 1994 BMW 540i. its been sitting for a year or so. I has noticeable shaking and vibration when car at idle. I replaced the engine mounts.It reduced it some. Check engine light on and off cu...
I changed the control module and the light won't go off. The car starts but runs rough. What do I need to do.
Now the car has a clipping sound, almost like the fan touching something, coming from the timin...
On a cold start the engine runs rough and has substantial 'tinking'noises coming from near the firewall. As the engine warms up it runs smoother. Any pointers or words of wisdom? The car has previo...