Mercedes S Klasse Diesel Engine Jerking and Power Loss

My 2001 Mercedes S Klasse diesel with 279785 km jerks when accelerating, loses power, and has the check engine light on. Error codes are stored, the engine runs rough, sometimes stalls, and smells strongly of exhaust. I suspect a manifold leak from scorching. Could a defective intake manifold, maybe with a gasket leak, cause these symptoms and affect engine performance?

4 comment(s)

Those symptoms point to a manifold problem. My old BMW had similar issues. Was the engine idling erratically too?

Yes, the engine idles erratically. Did your BMW show similar error codes related to manifold pressure, and what fixed it?

Yes, it did. A leaking intake manifold gasket was the cause. Get a workshop to confirm and quote on a manifold replacement.

A diagnostic confirmed the intake manifold was defective and needed replacing. The cost was 1180€. Thanks for the help.

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