Re: Idle surge when cold--1995 525ia (archive)
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Posted by PhilH on October 21, 2001 at 12:37:23:
In Reply to: Idle surge when cold--1995 525ia posted by Chris C. (atlanta) on October 21, 2001 at 09:41:07:
(posted from: 216-164-252-30.s284.tnt5.atn.pa.dialup.rcn.com (216.164.252.30))
I had a fluctuating idle before I replaced my oxygen sensor. How many miles are on your car? I believe BMW recommends replacement at 100k miles on an M50 525, but I was having problems at around 90k miles.-Phil
93 525i 5 spd/now with 97k miles...
Hi:
Anyone experience this on their 525 or 530/540 auto?
Pull up to a light first thing in the AM or PM after sitting all day (ambient temps in the 40s) and the car surges 4 or 5 times against the brake (in gear) before settling to a normal idle.
Only happens on dead cold car.
Some kind of idle control valve issue?
TIA,
Chris C.
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