First ever Mercedes - need some tips

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robe1643

New Member
Joined
Feb 23, 2023
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1
Location
UK
Car
C Class
Hi everyone,

I have bought my first ever Mercedes yesterday. It’s a C Class 2014 w204, c220 Diesel, Automatic. I was driving a BMW 3 series earlier.

It’s just been one day but I love the drive of the car. Still trying to get used to the controls and as the age of the car there are somethings not working.

- I accidentally broke the lever to disengage parking brakes, will have to replace it and get used to it tbh.
- Eco start/stop isn’t working even though the Eco button is on.
- not sure if it’s common but the windscreen washing fluid won’t work. I asked the independent dealer where I bought it from and they said it must be empty but shouldn’t it give a warning in that case?

An important question is about the cold start. This is my first diesel car and a mechanic told me to not run it for small distances in the morning, keep the engine running or I will have DPF issues. Also to full ad-blue as soon as the warning comes and try to keep the fuel tank at least quarter full all the time.

I need feedback from experienced Mercedes owners on these points. Hope someone can help.

Thanks.
 
Hi everyone,

I have bought my first ever Mercedes yesterday. It’s a C Class 2014 w204, c220 Diesel, Automatic. I was driving a BMW 3 series earlier.

It’s just been one day but I love the drive of the car. Still trying to get used to the controls and as the age of the car there are somethings not working.

- I accidentally broke the lever to disengage parking brakes, will have to replace it and get used to it tbh.
- Eco start/stop isn’t working even though the Eco button is on.
- not sure if it’s common but the windscreen washing fluid won’t work. I asked the independent dealer where I bought it from and they said it must be empty but shouldn’t it give a warning in that case?

An important question is about the cold start. This is my first diesel car and a mechanic told me to not run it for small distances in the morning, keep the engine running or I will have DPF issues. Also to full ad-blue as soon as the warning comes and try to keep the fuel tank at least quarter full all the time.

I need feedback from experienced Mercedes owners on these points. Hope someone can help.

Thanks.
Hi!
I recommend to visit Mercedes specialist (who specializes in MB) to make diagnostic and full inspection (Eco start/stop isn’t working, not sure if it’s common but the windscreen washing fluid won’t work).
Specialist who recommend like example others or who have good reviews.
 
It's possible the fuse has been removed for stop start ,if the dash icon turns green and it still won't work. The dash icon not the button. 👍

You need the washers for it to pass a MOT.

And to see obviously. Fill it up if it still won't work ,get it back to the seller to fix .

If it has got ad blue . Fill it right up and forget about it for 20,000 miles .

If you only do short trips ,try to do a decent 30 mile or so trip once a week ,this gives the dpf a chance to do a regen.
 
Give us a area in the UK to get the nearest indy garage ,as above fill the washer bottle up and if they don't work take it back,the stop start may well be the battery or as above somebody has removed the fuse,again take it back and get the seller to put right.
 
Have you checked the washer bottle for fluid?

Does the pump work when you press the washer control?
 
Welcome.

The most common reason for Stop/Start not working on a car of this age is a weak battery. The car has two batteries, one in the engine bay, the other in the boot. One or both batteries might be weak. Give the main battery and the auxiliary battery a full charge using a trickle charger if you can, or take the car for a long motorway drive, to see if the batteries can be revived. Then check the voltage on both batteries first thing in the morning before starting the engine - it should be well above 12v.
 
Welcome!
I'm sure someone more knowledgeable than me on here can confirm, but I think the 204 diesels don't have an Adblue system.
 
Welcome!
I'm sure someone more knowledgeable than me on here can confirm, but I think the 204 diesels don't have an Adblue system.

Apparently some do:


My guess is that the latest models had it? The W204 Saloon was in production until mid-2014 and the Coupe until 2015.
 
No W204's ever had AdBlue SCR, certainly in the UK. What's the mileage of the car? - check if the gearbox oil has been changed (77500miles or 5years) and if it's never been done or overdue then get it replaced asap. This is something I see missed SO often as owners skimp on servicing costs once the car is out of warranty and it's a job that not any garage can/will do (even if they are aware of the service interval!). Think of it as prevenative maintenance.
 
Try pushing the washer button harder.

If too gentle, it just gives one courtesy wipe, be firm with it.
 
Try pushing the washer button harder.

If too gentle, it just gives one courtesy wipe, be firm with it.
If that doesn’t work it could be a blocked filter in the grommet between the reservoir and pump (common fault). Easy enough to fix by exposing the reservoir (usually behind a wheel arch liner), pull the pump out of the clip and grommet, remove the grommet and clean it. It can fill with gunge over time.
 

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