500sl misfire loss of power

wilcer0

New Member
Joined
Aug 23, 2011
Messages
5
Car
1990 500 SL and 2006 S Class
Hi. I am a new member. I have a 1990 500sl that starts first time every time. However, there is a slight misfire at about 1500 revs and the power seems to be down. Also, for no reason, the power cuts almost completely and I have to press the accelerator to the floor to get the car to move at all. This is cured, as often as not, by switching off and starting again. Have replaced plugs. leads, dis caps and rotor arms, one coil and fuel filter, with no change. Any ideas?
 

EDZ649

MB Enthusiast
Joined
Jan 25, 2009
Messages
3,998
Location
1066 Country
Car
R129 SL600 V12
Hi and welcome.

If you have replaced all the ignition components I would be looking at the MAF.
 
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OP
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wilcer0

New Member
Joined
Aug 23, 2011
Messages
5
Car
1990 500 SL and 2006 S Class
Ta

Thanks for prompt reply. I will clean the MAF and see what happens.
 

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