Cold engine start problem

[MC220d]

Hi,

Have recently had my timing chain and tensioner replaced as it used to shake for a few seconds after cold start. They also replaced an injector as it was found to be almost on its last legs.

But have noticed since on cold starts, the engine takes longer to turn over?

Took it back to garage but they say they don’t hear it but each time I check it’s there. Even sent a recording. They checked and can’t see an issue. But while it was there they replaced a glow plug as eml light came on regarding one.


Still same issue with the longer turning over on cold starts.

Any ideas?

Do all the glow plugs need replacing even though I have no engine warning lights? Issue only happens the first time car is started on cold. Switch off and try again and it’s fine?

 

[mersum1es]

Probably fuel pressure problem. Try 2 cycle igniotion before actually starting. If it does not help, measure injector tank line leaks.

 

[MC220d]

Probably fuel pressure problem. Try 2 cycle igniotion before actually starting. If it does not help, measure injector tank line leaks.

Thanks for replying. Sorry if this sounds stupid but what is the 2 cycle ignition and how do you do it?

 

[Blobcat]

Thanks for replying. Sorry if this sounds stupid but what is the 2 cycle ignition and how do you do it?

On to position 2, off again then on to position 2 again then start