[Paul C]

My 2021 A250 has misfire on cyl2 and like others change over everything to cylinder 3 and still the fault is on cyl 2
Merc dealer looked at this 2hrs labour and need new head only just done 100 thousand miles always serviced by them and no chance of a contribution to the 5k expense. This can’t be right there is obviously an issue.

 

[veeeight]

My 2021 A250 has misfire on cyl2 and like others change over everything to cylinder 3 and still the fault is on cyl 2
Merc dealer looked at this 2hrs labour and need new head only just done 100 thousand miles always serviced by them and no chance of a contribution to the 5k expense. This can’t be right there is obviously an issue.

Yes.

read through these 2 threads:

AMG A35 - New Cylinder Head Please

Hi all, I'm new to the Mercedes A Class community but have a little story for you all. I recently purchased a 6 month old AMG A35 from a main dealer. Had a few months and have loved it up until last weekend when engine light came on. Called Merc who sent out technician. Diagnosed coil pack and...

www.aclassclub.co.uk

https://www.aclassclub.co.uk/threads/a35-engine-cylinder-head-problem-poll.20811/

 

[Chris77]

Hi all,

I have a W177 a250, 2019 model, 60k miles. I received an engine warning light, fault codes relating to misfire in cylinder two. Upon further investigation the MB garage have confirmed pressure in cylinder two in low via a compression test and that the fault is not related to spark plug, coil packs or alike since they have been switched around and the issue still persists in cylinder two.

After reading various forms, it seems this is leading to a cylinder head replacement which is of course an expensive job, and annoyingly a very common fault with the M260 engine. From what I have read, people have been quoted in the region of £4,000 - £5,000 to fix the issue. However, the MB garage have quoted me £4,100 just to strip the engine and investigate further, not even fix the issue. Is this common or does this seem outrageous? They have stated that I will have to pay for the full cost of repair following the strip, presumably totalling somewhere in the region of £9,000 - £10,000 adding two and two together. Furthermore, has anyone in the UK had any luck getting the issue fixed whilst being out of warranty, I have seen MB in Canada and the US have extended the warranty for this particular engine part, but not in the UK seemingly so…

My 2021 A250 has misfire on cyl2 and like others change over everything to cylinder 3 and still the fault is on cyl 2
Merc dealer looked at this 2hrs labour and need new head only just done 100 thousand miles always serviced by them and no chance of a contribution to the 5k expense. This can’t be right there is obviously an issue.

Had the same issue, eventually turned out to be the valve guides had worn and a new cylinder head was required. £4k down the drain (2019 A35)

 

[Forrester]

Had the same issue, eventually turned out to be the valve guides had worn and a new cylinder head was required. £4k down the drain (2019 A35)

Did you try and get an MB contribution or was the £4K after a reduction.

 

[Chris77]

Did you try and get an MB contribution or was the £4K after a reduction.

They offered 10% off labour as a good will gesture

 

[Forrester]

They offered 10% off labour as a good will gesture

Very poor from MB.