190E (W201) 1982-1993: 190E 2.3, 190E 2.6, 190E 2.3-16, 190E 2.5-16, 190 D 2.2, 190 D 2.5, 190 D 2.5 TURBO, 190E 2.5-16 Evolution I, 190E 2.5-16 Evolution II

2.6 cold start

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Old May 23, 2005 | 11:32 AM
  #1  
desmoboy's Avatar
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From: hertfordshire
190 2.6 and ducati 748R
Question 2.6 cold start


Hi
I have just aquired a '91 2.6 that takes a few turns of the key to start first thing when the engine is cold. Perfect for the rest of the day.
If it was an old manual car i'd say it was the choke, so i guess its the cold start sensor in some way.
Any one agree and where will i find it under under the bonnet.
Thanks
keith
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Old May 24, 2005 | 04:02 PM
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Benz Lover's Avatar
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From: Fairfax County,VA
1991 190e 2.6
Yeah I had the same problem with mine...lets see...I changed the O2 sensor,the inner seal around my gas cap and some other minor little parts and now it seems to start on the first try....Someone suggested that i change the gas cap seal .. they said I was prolly losing pressure in my gas line. try those.
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Old May 25, 2005 | 08:25 PM
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MaciekPL87's Avatar
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From: Homestead, FL (Miami)
'92 190E 2.6
My engine runs low on power ocassionally while driving, only when engine gets hot. I replaced the idle valve hose that goes to the head that was cracked, replaced the air intake tube that detoriated and still same problem. I lost fuel pressure in lines because I don't have a puff when I open the gas cap like I did before. That started happening after the engine was put back together when headgasket was replaced.

Mechanic told me it's because I'm loosing vacuum and the vacuum pulls the cap in the distributor bowl to let air in, and that causes engine to run too rich and run boggy. What other vacuum lines should I check... Every line that goes to distributor is properly tightened.

Meaning I maybe have to change the gascap?

Thanks

Maciej
'92 190E 2.6
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