B180 diesel - 1.5 or 1.8? How to tell&which is best?

[joropug]

Hi all,

I'm looking to buy a Mercedes B class sport, most seem to be 180ds.

I'm looking at 2012 to 14 age manuals, but in getting really confused with the engines.

Wikipedia and other sources suggest there is a 1.5 and a 1.8 variant but I'm struggling to understand how to tell the difference (in for sale adverts). Auto Trader shows displacement but not sure if it's accurate.

So I guess question 1 is when did they change it / what models is related to each engine? How do I tell?

Second is, which do I want? They seem to have similar outputs. I may consider adding a tuning box or a remap at a later date too. The 1.5 I understand is Renault derived which would put me off, if it wasn't in SO many cars. I've heard that it's a bit unrefined though.

The titles of some that I've saved so far have either cdi or cdi blue efficiency.

Third question is there are a few 200d in budget. Are these mechanically different to the 180d or can they be remapped to 200 levels?

First Mercedes so thanks for any input you can provide!

[rickh]

A B180d is Renaults cam belt driven 1.5d and a B200d is Mercedes own 1.8 chain driven diesel engine.. Pay abit more and get the 200d. There auctally quite responsive, where as the 1.5 struggles, and has that French car sound :}

Hope that helps...

Edited by rickh on Saturday 22 July 18:10

[joropug]

I'd love a 200 but there aren't many / aren't many in budget (11k).

I am a big hater of cambelts so the Mercedes engine sounds like the better choice. I wonder if there is much difference in refinement, mpg and reliability?

[va1o]

I thought the 1.5 was fitted with the Manual version and 1.8 with the Auto.

I've recently been surprised at how cheap W204 Facelift C-Classes can be had for, so one of those could be worth a look too for a more 'proper' Mercedes. As little as £7k seems enough for a 220 CDI Executive SE with Nav e.g. http://www.autotrader.co.uk/classified/advert/2017...

[cjb44]

va1o said:

I thought the 1.5 was fitted with the Manual version and 1.8 with the Auto.

I've recently been surprised at how cheap W204 Facelift C-Classes can be had for, so one of those could be worth a look too for a more 'proper' Mercedes. As little as £7k seems enough for a 220 CDI Executive SE with Nav e.g. http://www.autotrader.co.uk/classified/advert/2017...

At that mileage I would expect it to be less money, although provided it has been looked after properly that sort of mileage should not put you off.