hi newbie to forum with a w212 dpf issue any advice

[milesbetterRoy]

hi , I'm a newbie but aMerc fanatic I've a 2011 e220 w212 7matic displaying dtc code saying dog full of soot I sprayed in Dpf Doctor threw first tempeature sensor yesterday filled up with wynns to lower temp which engine Regens in haven' had a proper chance to run it through but there is a bit of a difference it' put my mil light back on its booked into Merc Tommorow and don't want it to beat me any help ideas appreciated thanks Roy

 

[LostKiwi]

Does your engine get to normal temperature?

 

[milesbetterRoy]

it gets hotter

 

[milesbetterRoy]

Does your engine get to normal temperature?

it gets a lot hotter

 

[LostKiwi]

Are you saying your engine is overheating (engine coolant not DPF is what I'm talking about)?

 

[milesbetterRoy]

no it's my dpf

Are you saying your engine is overheating (engine coolant not DPF is what I'm talking about)?

it's blocked

 

[milesbetterRoy]

my engine gets to normal temp mil is on

 

[milesbetterRoy]

it gets a lot hotter

87 degrees proper oil in her too

 

[LostKiwi]

Just trying to see why the DPF is blocked and why it's not doing a regen. Low engine temp is a cause for that.

 

[milesbetterRoy]

I don't understand it myself I know small journeys not good for them and my new partner doesn' t drive it far or fast but since this issue she' been doing 90 mile trip once a week , do u think a forced Regen from Merc would be a waste of cash done 45 miles today after I put in wynns eraced excess soot dtc and light never came on but guaranteed if I go out Tommorow it will be on again ....any advice thinking about tking it out to manually clean

 

[bembo449]

a forced regen should see it right but if its anything like one of my customers lexus it may need summat a bit more radical

 

[milesbetterRoy]

a forced regen should see it right but if its anything like one of my customers lexus it may need summat a bit more radical

I've sprayed k2 indpf a week ago and dog doctor yesterday it's booked in at 11am at Mercedes at 150 for a Regen, my friend got his dpf deep cleaned at Halfords for 85 around half the price .thinking about another tin of dpf doctor only thing i can get my hands in and make Merc in time with if it fails any opinions?

 

[LostKiwi]

Frankly I'd get the forced regen done by MB. These are expensive bits of kit so do it properly rather than throwing god knows what down it.

 

[milesbetterRoy]

Frankly I'd get the forced regen done by MB. These are expensive bits of kit so do it properly rather than throwing god knows what down it.

I'll take your advice bud

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[malcolm E53 AMG]

The car ecu forces a regen if the pressure sensors fore and aft of the DPF show the level of soot has built up so it may be possible that one or other of those has stopped working. No doubt hooking up to STAR will throw up a fault if there is one

 

[star]

If the soot content is too high or the eml light is on, it will not regenerate. It can be done most times with the help of a star machine.

 

[milesbetterRoy]

The car ecu forces a regen if the pressure sensors fore and aft of the DPF show the level of soot has built up so it may be possible that one or other of those has stopped working. No doubt hooking up to STAR will throw up a fault if there is one

I'm not getting a code saying there broke, would it need a star machine to diagnose

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[bembo449]

star will pin point the fault pal , just hope its not the pressure sensors as they are expensive for some cars , lexus are 550 + vat each !

 

[milesbetterRoy]

star will pin point the fault pal , just hope its not the pressure sensors as they are expensive for some cars , lexus are 550 + vat each !

I took it to Merc for Regen 125 plus vat good as new thanks for the advice

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[bembo449]

excellent news , happy to help pal