Most reliable 2015-2018 C Class engine / common problems

Most reliable 2015-2018 C Class engine / common problems

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Trailhead

Original Poster:

2,628 posts

154 months

Thursday 2nd April 2020
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Hi all

We are considering an automatic C Class in the 2015-2018 age range. It’ll probably be a diesel.

What are the common faults to look out for?

Is there a particular engine that is more reliable (or less reliable) than the rest?

Cheers,

James

quinny100

960 posts

193 months

Friday 3rd April 2020
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The C220d and C250d are essentially the same 2.1 litre engine in different states of tune. They are generally very reliable, if a bit lacking in refinement compared to the latest generation of engines. The 220d is around 170BHP, the 250d is around 205BHP.

The C200d is a 1.6 and is a bit puny.

I had a 2017 C Class, albeit a C350e and never had any problems with it. My friend has had a C220d since 2015 and that's been fine - he normally changes his car every 3 years on the button but he's kept hold of it because it's been trouble free and a 2018 replacement would have been pretty much identical and the dealer wanted £20k to swap.

The sat nav display graphics on 2015-2016 cars were awful, but these can be upgraded to the later graphics if you have a PC and an SD Card slot.

Early: https://images.clickdealer.co.uk/vehicles/1921/192...
Later: https://images.clickdealer.co.uk/vehicles/2661/266...

This is not a problem if you go for a Premium Plus model as they had the much better COMAND nav system.

Trailhead

Original Poster:

2,628 posts

154 months

Saturday 4th April 2020
quotequote all
quinny100 said:
The C220d and C250d are essentially the same 2.1 litre engine in different states of tune. They are generally very reliable, if a bit lacking in refinement compared to the latest generation of engines. The 220d is around 170BHP, the 250d is around 205BHP.

The C200d is a 1.6 and is a bit puny.

I had a 2017 C Class, albeit a C350e and never had any problems with it. My friend has had a C220d since 2015 and that's been fine - he normally changes his car every 3 years on the button but he's kept hold of it because it's been trouble free and a 2018 replacement would have been pretty much identical and the dealer wanted £20k to swap.

The sat nav display graphics on 2015-2016 cars were awful, but these can be upgraded to the later graphics if you have a PC and an SD Card slot.

Early: https://images.clickdealer.co.uk/vehicles/1921/192...
Later: https://images.clickdealer.co.uk/vehicles/2661/266...

This is not a problem if you go for a Premium Plus model as they had the much better COMAND nav system.
Thank you. That is really helpful!


Ex-Milittary

1 posts

35 months

Sunday 26th December 2021
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Hey Guys !!
- i did buy a Mercedes-Benz C-Class 200D Engine 1.6L Serie OM 622 i'm confuse if this engine is good ore full with problems i dont care for the power more i care for a solid engine.
thanks in advance