E220 09 plate black smoke on acceleration.

[KnowNothing]

Hi.

Sorry, know next to nothing about cars so might struggle to articulate this.

Got an 09 plate e220 Cdi. Fine most of the time, drives well but on hard acceleration I get a huge cloud of black smoke. Accelerates fine otherwise. Worried it might be something nasty. Any help/advice greatly appreciated.

Thank you.

Joe

 

[KnowNothing]

Forgot to mention I am new to the forum.

Cheers

 

[Dieselman]

Welcome.

If the car hasn't been driven much it may clear up, but try adding some injector cleaner. I like Millers brand, it really seems to work.

 

[KnowNothing]

Thanks dieselman. Never heard of injector cleaner. Do you just add it to your fuel?

Cheers

 

[Dieselman]

Yes.

 

[grumpyoldgit]

I use Millers too. It also seems to quieten the engine a little.

Cheapest I've found on the internet is from this supplier, with free P&P Millers Diesel Power Ecomax Fuel cleaner Additive treatment 500ml | eBay

An Italian tune-up may clear the system out too.

 

[llewe]

I found Shell v power or ~BP ultimate to be effective too

 

[KnowNothing]

Thanks all. Will try some posh diesel and give it a blast first then.

 

[KnowNothing]

Italian tune up sounds the way forward.

 

[E270 Owner]

Hi.

Sorry, know next to nothing about cars so might struggle to articulate this.

Got an 09 plate e220 Cdi. Fine most of the time, drives well but on hard acceleration I get a huge cloud of black smoke. Accelerates fine otherwise. Worried it might be something nasty. Any help/advice greatly appreciated.

Thank you.

Joe

http://www.mbclub.co.uk/forums/engine/170599-merc-clk-270cdi-black-smoke.html

 

[diandave]

Air filter may need changing.

 

[KnowNothing]

Thanks all.

Italian tune up today seems to have cleared it for now.

 

[grumpyoldgit]

Still worth giving it a dose of Millers. A bottle will treat several tank fulls.

 

[KnowNothing]

Thanks mike. Will give it a go.

 

[Lord-WYBMAnE220]

Many recommend that injectors be changed every 60K.
They are a heavy-wear service item.
I'm just about to change mine - something I shoulda done when I got it 18 months ago at 85K ... when it was already smoking a fair bit.
But I wanted to eliminate all other possible causes first.
When it gets really bad, the soot'll start coking up your lamda sensor - which'll sometimes put it in limp mode.

 

[KnowNothing]

Thanks Lord. What's the damage for changing injectors?

 

[E270 Owner]

Thanks Lord. What's the damage for changing injectors?

OE/OEM Number: 28254952, A6510700487, 6510700487


Aprrox £1,600 including fitting ........... on average and subject to engine code clarification












.

 

[KnowNothing]

Ouch!

 

[E270 Owner]

Check the link I posted in here earlier