Question 1

Is the Mercedes OM654 diesel better than the older OM651?

Accepted Answer

The 2.0-litre OM654, from 2016, is lighter and cleaner than the 2.1-litre OM651 it replaced, with its exhaust treatment mounted close to the engine. On an OM651, ask about injector work and listen for timing-chain rattle on a cold start.

Question 2

How much more road tax does a diesel Mercedes pay in Luxembourg?

Accepted Answer

Half as much again as a petrol Mercedes with the same CO₂ figure, since its fuel factor is 0.9 instead of 0.6. A diesel at 145 g/km pays €143 a year, against €95 for a petrol car.

Question 3

What should I check on a used Mercedes diesel's AdBlue system?

Accepted Answer

That no warning is showing, since BlueTEC and later d models clean their exhaust with AdBlue from a separate tank. A fault in the system, often its tank heater or pump, can block restarting once the countdown ends.

Question 4

Which new Mercedes are still sold with a diesel engine?

Accepted Answer

The A-, C-, E- and S-Class, CLE, GLC, GLE, GLS and G 450 d, plus the V-Class, Vito Tourer and Marco Polo. The E 300 de and GLC 300 de add a plug-in hybrid system to the diesel.

Used Mercedes-Benz diesel cars in Luxembourg

Mercedes-Benz T Classe MERCEDES-BENZ T180 CDI ALCANTARA KAMERA AUTOMATIK LED

Mercedes GLA 200 AMG 7G-Tronic

Mercedes-Benz B 180 B 180 CDI (BlueEFFICIENCY) 7G-DCT

Mercedes-Benz Sprinter 316 CDI 163

Mercedes A 180

Mercedes-Benz GLB 180 d Business Extra auto

Mercedes GLB 180

Mercedes C 180 Amg line

Mercedes-Benz A 180 A 180 D

Mercedes C 180