Replacement Engine Trouble - W211 320 Petrol - Mercedes-Benz Forum

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post #1 of 1 (permalink) Old 01-27-2008, 01:43 PM Thread Starter
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Replacement Engine Trouble - W211 320 Petrol

I have just bought an 04 W211 320 (Petrol) estate that has had a replacement engine fitted. The emissions light is permanently on, and sometimes when staring the engine I get an ESP failure warning. I am told, but have not confirmed that the replacement engine is from an 05 SL. The car feels very sluggish, especially at very low speed and between 50 – 70 mph. With ESP switched off the car feels much better, but still not quite right. I suspect that the engine mapping is wrong for the car-engine combination, but frankly this is just a guess.

Any suggestions about what to check, or can someone recommend a Merc specialist/tuner not to far from London.

Incidentally, would this car have left the factory with a straight 6 or a v6?


Piers Wilson is offline  
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