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Old 09-05-2003, 10:31 PM
fahrgewehr2's Avatar
fahrgewehr2 fahrgewehr2 is offline
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Join Date: Aug 2003
Location: Wilmington, NC
Posts: 1,264
126 300se warm-up question

Hi all,

Have a question. 90 300se - is MUCH faster off the line (much more power) when first starting out in the morning. After motor is becoming warm (temp gauge is between 50 and 80C) there is a hesitation. After car is fully warmed up, everything is smooth, but engine is not as fast as it is when it first started.

I hope this is not confusing. I have seen 2 posts with this same question in the past, and neither recieved a reply.

O2 sensor is new. Mileage at 20mpg. Car starts cery easily. Valve job done 20k ago. Getting 50% flucuation at warm idle.

Mystery...any ideas?

'90 300SE 298k
-300K and it gets put into retirement.
'80 300D 255k Purchased new by family in 1980.

Had a:
1973 220 (gas)
1980 300SD
1992 400E
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