Of course, it goes without saying.
Where is the fuel filter btw?
My other car was in the engine bay, but I've seen some Mercs have it under the car at the rear?

Also, which pump should I buy? I've seen there are 3 bar, 5 bar, 6 bar etc all for my car?

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Smoke Silver 1994 E220 Coupe Automatic
0 kilometers 6 September 1994
100,635 kilometers - 6 September 2010