JacekP

According to Kleemann M271 Performance Kit manual it is recommended to change fuel pressure regulator. I have smaller kompressor pulley already.

I know how to put this new regulator but as far as i know there is built-in ~4bar pressure regulator in fuel filter. So installing new one after fuel filter won't do it's job.

I think i need to remove stock fuel filter to one without pressure regulator.

Any suggestions? Which filter would be good for my car?

Thanks.

Glyn M Ruck

The M271 fuel injection system as fitted to the C Class sedan is different to the V6 models in that it has a booster/amplifier pump up front being charged by the in-tank pump via the filter which has a min 3.8 bar regulator. I do not understand why the SLK is any different but it does have a different fuel tank arrangement. V6 models run on a > 3.8 bar fuel rail.

I strongly recommend you discuss this with Kleeman. They should recommend/supply a suitable filter if needed.

Hopefully someone that has done the job will chip in.

JacekP

I don't have Kleemann kit, i bought parts separately from variuos sellers. But those parts are nearly same as those in this manual. So i can't count on Kleemann's help

Thanks for response!

JacekP

Any ideas guys?