Question about 1992 BMW 5 Series
1992 BMW 525i model, manual 5 speed. Car only has 131xxx miles on it. The car starts fine but idles rough and has a shaky sound. Check Engine light comes on periodically but turns off after driving a few minutes. When I accelerate the engine does not fully engage and it comes close to dying when I release the clutch. While driving at low speeds or while stopped, the car shakes and rides rough, like it is having trouble continuing. My dad drove it and suspected a misfire, but he is no mechanic. Any ideas?
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Posted on Jan 02, 2017
I had the same issue with my 2000 528i. You more than likely need to have the Vanos seals replaced. BMW will tell you that the Vanos unit needs to be replaced but the problem is more than likely isolated to the OEM seals that shipped with the Vanos. This issue has been reported by several BMW owners. This issue has been thoroughly documented and reported to BMW in an effort to seek a corrective fix. Since BMW failed to address the problem, the guys that investigated the issue started their own company providing superior Vanos seals to the deficient OEM Vanos seals.
The company is Beisan Systems, LLC. I ordered their Vanos seal kit and had them installed at a local BMW performance shop for less than half of what BMW wanted to charge me for a Vanos replacement with the same faulty seals. Besian also provides step-by-step DIY instructions; if you have the time.
Posted on Jan 03, 2009
Strange, it sounds like you've got a dead spark plug, but that would be continuous, not only in the morning, the other explanation could be that the engine management is injecting too much fuel, flooding the cylinder, and wetting the spark plug, which would explain why you need to wait 5 mins for the fuel to evaporate. Try disconnecting the battery for 30 minutes to reset the EMS, if that doesn't help, get to a workshop and let them check the EMS with a computer, the electric choke may be sending the wrong signals to the EMS. Hope this helps!
Posted on Mar 10, 2009
Your oil is a little low, and the timing may be off a bit but if it smooths out after warm it is probably ljust
Posted on Jul 08, 2009
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