Hi guys,

My car 1992 500sel m119 172kml has low power when car warms up. Car starts to hesitate when coolant reaches 90 degrees and as it get hotter it gets worse. At around 100 degrees if i floor it it sounds like it floods the cylinders or maybe not enough gas. I dont know how to test it. Engine is very hot to work around. It seems to pick up rpms with stress even on idle. I suspect timing (which is electronic and it seems to change timing when i use a strobe light to check), tranny overload sensor that alters timing or fuel pump or fuel filter. Problem is so bad that if I have ac on and need to move when light turns green the car would barely move forward. People honk behind for me to move Intake makes a sound like those Maximas with cold air intakes when floored but my car doesnt move nowhere. Sounds like its about to stall but it doesnt. When its cold it picks up speed pretty well. Any thoughts? Could it be one of the ignition coils?

I have changed coolant temperature sensor, thermostat, water pump, spark plugs, cleaned wires, rotor caps and rotors.

Im stuck here.

Please help.

Thank you

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1999 ML430 Silver 135k ml
Smoked LED taillights, Alpine in-dash DVD player, 12" sub, Pioneer components, 2 amps, 4200k HIDs, ML55 headlights, 20" rims, mirror LED blinkers

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SOLD but miss it everyday 1992 500sel Black
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