Car seems back to normal now after a 20 minute drive !
Rev counter showing steady idle c 700rpm when up to temp and no more exhaust smoke.
I think the maf was definitely faulty as garage said code reappeared when they ran engine after they had cleared it.
The faulty ( £58 ) maf fitted in 2016...
So decided to take it in to my local garage.
They did a pressurised smoke check of air and vacuum system - no faults detected.
Diag check showed P0100 maf sensor fault - values out of spec.
They said would be £138 for a new sensor which I said was too expensive as it had been replaced in 2016...
Hi All
Thanks very much for your replies.
Today I let the car idle up to 80c.
Revs began to surge.
I checked exhaust and there was a fair bit of grey smoke.
I'm now thinking faulty trans modulator valve...
might be sucking trans fluid into cylinders.
I know someone who used to work with auto...
Hi
Hope someone can help me.
Late 1997 SL320 I6. Mileage approx 31k.
Over the past couple of weeks car has had rough idle and when D or R selected revs drop
and she cuts out.
Can take 2 or 3 turns to start.
Only seems to happen when engine is warm.
Above idle she pulls well with no problems.
I...
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Hi everyone.
Always promised myself i would get a Merc after riding in my uncle's Pagoda back in the 70s.
Was briefly tempted with a Jag XK8 but then came to my senses and decided to put pension lump sum to good use and recently acquired an SL320 for me and the OH!!
:thumb::thumb: