W212, M274 engine, E-Class 2013 petrol, Misfire P008992, P030085, P030185, P030385, P030485, P06DA00

cheapshots

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W212 E250 (petrol) 2013
Hi folks,

Having some real trouble here, E-Class 2013, petrol, M274 engine, 85k mileage, regularly serviced / looked after. Mostly used in town driving.

History:
3 weeks, as I was parking, the engine bay started to shake/jerk as if it was going to stall. Left it, came back 7 hours later, coolant low warning sign came up, I topped up and drove - was absolutely fine.
1 week ago, driving on dual carriageway, as I slowed down for a traffic light, the car started to shake/jerk violently again and then total loss of power, it just stopped.

AA to the rescue!

P008992 - fuel pressure control valve 1
P030085 - misfires different cylinders
P030185 - cylinder 1 misfiring
P030385 - cylinder 3 misfiring
P030485 cylinder 4 misfiring
P06DA00 - engine oil pimp bypass solenoid valve

The garage have checked: the coils/sensor on the fuel rail/spark plugs/expanded timing chain/compression test to check for cracked piston head and found a faulty injector spraying too much fuel into the engine which they changed.

However the problem persists and now the car won't even start. They're getting the ECU checked...

Wondered if something similar has happened to anybody here before. Thanks a million.
 

ajlsl600

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clk3202001,sl6002003 with everything regrettably sold ,A class 170cdi auto. NG/TF1800 ML250
Wud one injector cause all this? Also won't the injector run on origional map? Albeit not at optimum efficiency.

Sorry. Just realised its online 4 cyl so cud cause all shaking. Ect. But one injector won't I don't think giv you a miss firing code for multiple cylinders?
 
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cheapshots

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W212 E250 (petrol) 2013
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Update for you folks...

The car is now fine. The garage changed injectors 2 and 3, and coils. £640 all in.

The fault codes kept throwing the garage off and I think they wasted a lot of time trying to pin point which injectors / coils were at fault.

I did query whether we should just change all injectors seeing as two out of four have failed... Any thoughts?
 
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