Clunk on pull away - Warm Engine only

Neil H-W

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Joined
Sep 7, 2020
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Your Mercedes
CLK320
Hi,

I have a problem that only shows up when the engine is warm, usually 20 mins in to a journey.
There's a distinct 'clunk' on pull away. It makes me nervous because I've already replaced the Torque Convertor and it 'feels' similar, although that was 'judder' on pull away and happened when cold. Any ideas please ?
 
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Neil H-W

New Member
Joined
Sep 7, 2020
Messages
5
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0
Your Mercedes
CLK320
  • Thread Starter
  • Thread starter
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Would that only manifest itself when warm? It's also intermittent. Also 'sometimes on pull up', feels as though the engine is pushing ever so slightly
 

LostKiwi

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Location
Midlands / Charente-Maritime
Your Mercedes
'93 500SL-32, '01 W210 Estate E240 (RIP), 02 R230 SL500, 04 Smart Roadster Coupe, 11 R350CDi
They are hydraulic mounts so can be affected by heat.
Quick test:
Open bonnet.
Apply parking brake.
Start engine.
Left foot firmly on brake pedal select R
Apply throttle gently whilst holding left foot firmly on brake and watch engine. If one side rises more than an inch mount may be suspect.
Repeat in D.

MOTs don't check engine mounts.
 


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