Lack of power

[ips24]

Hi everyone having a little problem my w204 c200d when accelerating take a while for it to pick up speed any ideas

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[kid-jensen]

Start with a scan of the fault codes and go from there.

 

[Gazwould]

Pre facelift ?

 

[ips24]

2010 and there is no fault codes or lights

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[kid-jensen]

If there's no codes, you need to establish if it really is down on power.

Do 2 or 3 0-60 runs and compare them to the official figures (add a second or so to be realistic).

Use the Torque App on the phone and an ODBII to Bluetooth adapter to automate the process and take out the guesswork...

 

[ips24]

It's so flat just going up a hill plant the accelerator it kicks down revs upto 3thousand and goes nowhere

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[kid-jensen]

So, what did the 0-60 come out at?

 

[umblecumbuz]

Hi everyone having a little problem my w204 c200d when accelerating take a while for it to pick up speed any ideas.

Er ..... all you'll get with this scant information is a bunch of guesses that'll have you chasing your tail!

Give the guys on here with real knowledge and experience a sporting chance. Provide more detail of all the symptoms, including when the performance changed, what you've done since, mileage, how long you've had the car, last service, etc.

Better still, get it put on Star or go to a good Merc indie, and have it properly assessed.

Otherwise, it's a bit like going to the doctor and telling him 'I've got a pain', and expecting him to come up with an accurate diagnosis!

 

[ips24]

I have given the correct information

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[ips24]

What's the point of doing a 0-60 when I know my has a low end flat spot and is nowhere near as quick about a month ago

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[V6Matty]

Have you had the car on STAR to see what the live data is saying?

 

[Steve@Avantgarde]

If you had a loss of power, then I would say that there would definitely be fault codes stored? What are you using to scan the car? Are you using STAR? If not I would suggest you take to an Indie who does have it. Generic scanners do not always work on MB's.

Either that or your DPF is in a regeneration cycle

 

[brianbrian]

When were the fuel filters changed.

 

[ips24]

Changed fuel filter and still press pedall flat to the floor and revs and slowly gets upto speed takes a good 11sec to 60mph before easy 8-9 seconds
So annoying cant find what's wrong

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[Wighty]

Changed fuel filter and still press pedall flat to the floor and revs and slowly gets upto speed takes a good 11sec to 60mph before easy 8-9 seconds
So annoying cant find what's wrong

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It's in limp home mode , protecting the car by not revving above 3k revs . Have you had the car on Star or icarsoft (an MB specific scanner ) there will be stored fault codes

 

[ips24]

No codes been on a diagnostic machine but I dont think it was a star one ?

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[LostKiwi]

No codes been on a diagnostic machine but I dont think it was a star one ?

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A generic reader will only read some codes. The only code reader guaranteed to read them all is Star (aka Xentry).
The iCarsoft i980, MB-II and MB v2.0 read a very high proportion too.
Get it read property. Also look at live values such as fuel trims, knock sensor etc.

 

[Craiglxviii]

I have given the correct information

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Don’t be chippy. You’ve had excellent advice on what the professionals here would need in order to take their own time out to help diagnose your problem, for free. Be grateful not narky.

 

[ips24]

I am not chippy whatever that means I have listened to everybody's advice on this forum and I've even taken it to a garage and had it sorted out don't need sarcastic remarks from yourself cos I am not being sarcastic to anybody on this forum any help giving his grateful but you always seem to get one person on these forums that are always think they're better than everybody else

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[ips24]

Thanks lost kiwi for the advice and I will look into that icarsoft code reader

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