W116032 450 SE USA Benzin in Öl

Hi Petr,

a fuel consumption of 20 liters/100km is definitely too much. As I write in Engine Control Unit (ECU) - the brain replacing a seiconductor can change fuction blocks and make re-tuning necessary.

What is the Bosch number of your ECU and MAP sensor?

Hello Volker, numbers which require:
ECU - Bosch 0280002014
MAF - 0280100122 - Stamped
Thank you for your interest
BR. Peter

Hi Petr,

those are the right components. But you should definitely consider to add the missing rubber covers for connectors.

Now that I have looked at that picture again, I have an idea. As motor wiring harness was replaced and when I see two red and two black cables at MAP sensor connector: Did you check their correct wiring? If primary and secondary coils are mixed, that would create very strange results.

Just check whether pin numbers on MAP sensor connector are connected to the same pin on ECU.

Hello Volker
I'll have to check the entire wiring harness (I did not produce it)
Big mistake is in the order of injection - the car could really ride !!!
Firing order is 15486372
oscilograph first row of cylinders. 1_4_2_3 should be 1_4_3_2
oscillograph by the second series of rollers. 5_8_6_7 correctly
BR.Peter

By the way Peter,

do you in CZ know a source for those contacts in 25 pin connector towards ECU? MB supplied them till 3 years ago but now there is no supplier available in the market.