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benstorm53

Mercedes R Klasse Diesel Injection Issue

My 2017 Mercedes R Klasse diesel is exhibiting some worrying symptoms I've noticed higher fuel consumption a distinct loss of engine power and the engine occasionally stalls when idling Also there's smoke when accelerating The car has 112994 km on the clock Could this be related to the injection system I suspect a defective cable or plug connection

Summary of the thread

A 2017 Mercedes R Klasse diesel exhibited symptoms such as higher fuel consumption, loss of engine power, stalling, and smoke during acceleration, suggesting a potential issue with the fuel injection system. A defective cable or plug connection was suspected as a plausible cause. A diagnostic check using specialized equipment was recommended to confirm the issue. The problem was identified as a faulty plug connection in the injection system, which was repaired by a mechanic.

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4 comment(s)

theoschwarz67

The symptoms you describe certainly point towards a potential issue with the fuel injection system Increased fuel consumption reduced power stalling and smoke are all common indicators A defective cable or plug connection affecting a component is a plausible cause I recommend a diagnostic check to confirm The fuel injection system is responsible for delivering fuel to the engine A malfunction in this system can drastically affect performance and fuel efficiency

benstorm53 (community.author)

Thanks for the quick reply What exactly does a 'diagnostic check' involve Is this something I can do myself or is specialized equipment required

theoschwarz67

A diagnostic check involves using specialized equipment to read error codes stored in your vehicle's engine control unit ECU The ECU is a computer that monitors and controls various aspects of the engine's operation including the fuel injection system While some basic OBD2 scanners are available for home use a professional-grade scanner can provide more detailed information Considering the symptoms I recommend taking your R Klasse to a qualified workshop for a thorough diagnosis A damaged fuel injection system can have a serious impact on the operation of your Diesel engine

benstorm53 (community.author)

Understood I took it to a local mechanic You were spot on it was a faulty plug connection in the injection system The repair cost 95€ Thanks for the advice

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MERCEDES

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RKLASSE