My s class doesn't have power/ acceleration

[Oktawian]

Hey , I'm writing this post as I really really need help.
My problem is that my Mercedes s class 2007 320 diesel doesn't have the power to accelerate. When I accelerate it does nothing . I can go max about 80kmh once I speed up somewhere.

Can someone please tell me what would be the problem ? As I cleaned my DPF filter and stuff like that but it doesn't have the power since I got the car back from the mechanic that cleaned the DPF.
What is the problem in my car?

Thanks in advance

 

[Wighty]

Without guessing , it needs to be plugged into a Mercedes Star computer to save you money on unnecessary work . Where do you live so someone can recommend a garage ?

 

[LostKiwi]

Sounds like its in limp mode. Is the engine management light on?
If not does it come on when the ignition is switched on?

I'd be taking it back to him to sort out.

 

[Oktawian]

Sounds like its in limp mode. Is the engine management light on?
If not does it come on when the ignition is switched on?

I'd be taking it back to him to sort out.

Yes the car engine light is ON

 

[LostKiwi]

Yes the car engine light is ON

Definitely in limp mode then which means it needs the code read as Wighty suggests.

 

[Oktawian]

Definitely in limp mode then which means it needs the code read as Wighty suggests.

What do I have to do

 

[LostKiwi]

What do I have to do

You need to find someone with an MB specific code reader (you can but an iCarsoft 980 or MB-II for around £100-150). This will read the MB specific codes for the engine and tell you what error it thinks it has.

Where are you located? There may be a good Indy if you're in the UK?

 

[AMGeed]

As I cleaned my DPF filter and stuff like that but it doesn't have the power since I got the car back from the mechanic that cleaned the DPF.
What is the problem in my car?

Thanks in advance

The mechanic who did the work on your car is responsible for putting it right.
How come you didn't return the car immediately if the power was missing?
I aasume all was well before the DPF clean?

As above, now the EML is on the fault code needs reading to pinpoint the fault. A good MB trained mechanic (indy) is what you need. It may just be a faulty sensor causing the power loss. (MAF sensor)

 

[Oktawian]

The mechanic who did the work on your car is responsible for putting it right.
How come you didn't return the car immediately if the power was missing?
I aasume all was well before the DPF clean?

As above, now the EML is on the fault code needs reading to pinpoint the fault. A good MB trained mechanic (indy) is what you need. It may just be a faulty sensor causing the power loss. (MAF sensor)

Hi , the car was very good for 2 days and it was fast and everything but on 3rd day the car was bad it was choking badly hpwever this was done in my country and i actually took the risk and travelled 1700km with the car not haviing acceleration but now as i am in england this car is very bad no acceleration at all.

 

[Oktawian]

The mechanic who did the work on your car is responsible for putting it right.
How come you didn't return the car immediately if the power was missing?
I aasume all was well before the DPF clean?

As above, now the EML is on the fault code needs reading to pinpoint the fault. A good MB trained mechanic (indy) is what you need. It may just be a faulty sensor causing the power loss. (MAF sensor)

because you know the mechanic in my country is very bad i had to wait for the car 3 weeks as they said i had different problems and even with the turbo but after sh said turbo i took just the turbo from the mercedes service and i went to a guy that does all the tunning stuff and he said the turbo is in a good condition.

 

[Oktawian]

You need to find someone with an MB specific code reader (you can but an iCarsoft 980 or MB-II for around £100-150). This will read the MB specific codes for the engine and tell you what error it thinks it has.

Where are you located? There may be a good Indy if you're in the UK?

I live near Luton in England

 

[John Laidlaw]

Wayne Gates in Harrow is worth the travel

 

[AMGeed]

Wayne Gates in Harrow is worth the travel

I'd 2nd this. Give them a call first and ask for Terry if possible. Tell them you were pointed to him by the MB forum.

http://www.mercservicing.co.uk/

Tel: 020 8863 9233
Mob: 07989 321638

 

[LostKiwi]

Yep WG would be my recommendation based on where you are too.

 

[Craiglxviii]

Wayne Gates or Welwyn Merx are both equally close and equally good...

 

[davsop]

Hi
I limped back from Cambridge this week in my 2011 S350. No acceleration and would very gradually climb up to speed.
Mobilo came out to me and found a fault code 123900.
Had a call today to say there was a split intercooler pipe.
This had been an intermittent fault as i'd noticed it a couple of weeks ago.

 

[bembo449]

common fault with hoses splitting pal

 

[Oktawian]

what hoses you talking about ?