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Dpf and Glow Plugs

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Dpf and Glow Plugs

Postby timr91 » Mon Dec 13, 2021 5:19 pm

Hi folks,

About 6 weeks ago I had a "Service Engine Now" message come up on my 2014 Transit. It had just had a service about 2 months prior, so I assumed they had just forget to reset it and ignored it for about a week until it changed to the engine management light. I took it back to the mechanics who did the service, who charged me for a bunch of other work, changed 2 glow plugs and said the other 2 were seized, and said the engine light should be sorted and it should get through the mot with no issues but that the dpf might need cleaned at some point. The following day the engine light comes back on, this time when I'm on the other side of the country for work. I took it to a DPF specialist who cleaned it out but said that glow plugs 3 & 4 had a fault code, and that without changing them it would clog up again pretty quickly.

I needed the van for work and was travelling between the north and south of Ireland with it so didn't have a chance to get it in anywhere, but the engine light came back on. I phoned around a few mechanics who all told me that the glow plugs and dpf have nothing to do with each other and that it's another fault causing the dpf to soot up, and that the solution is to drill it out. This seems like a bad idea to me as I've now read that they're changing the mot regs next year and will be doing stricter tests on it, and it's a hefty fine if you're caught driving without it.

In the meantime, i've had the dpf cleaned for the second time by someone else, who again said that I need to get the glow plugs changed. I've phoned around a few more mechanics asking them to change the glow plugs but they're all adamant that the glow plugs aren't the issue, despite them showing up as a fault code. Anyone have any ideas? I found a glow plug removal specialist but he needs the inlet manifold removed for him to work on them, so it'd be a case of taking it to a mechanic for them to take that apart, then he changes the plugs. If that will fix the problem then I'm all for it but with so much conflicting advice I can't afford to drop another few hundred £££ for the same thing to happen again? Throughout all this I've also had an "oil change required" message come up. Is that a case of it wasn't reset during the service, or can it fire up that message if it senses there is something wrong with the oil? I would've thought it would just bring up the red oil light if that was the case.

Many thanks for any advice
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Re: Dpf and Glow Plugs

Postby metalworker0 » Tue Dec 14, 2021 1:22 pm

Here's a youtube video that explains the relationship with the dpf and glowplugs

Think the mechs who said it was nothing to do with it, are old school and did not know. - perhaps they think wrongly that they are there just for starting the van when its cold ..they are not up to date on things - they have failed to move with the times and educate themselves.

https://www.youtube.com/watch?v=Q4aI0-xIQsc

So, what he's saying; that during regeneration these plugs play an active role .....without them working, the regeneration will fail and DPF will clog up.
another thing that may need a look at is , are your injectors performing properly ..if they are not then this will add to your problems of soot in the dpf.

all the best.mark
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Re: Dpf and Glow Plugs

Postby mcbutler » Thu Dec 16, 2021 12:10 am

metalworker0 wrote:Here's a youtube video that explains the relationship with the dpf and glowplugs

Think the mechs who said it was nothing to do with it, are old school and did not know. - perhaps they think wrongly that they are there just for starting the van when its cold ..they are not up to date on things - they have failed to move with the times and educate themselves.

https://www.youtube.com/watch?v=Q4aI0-xIQsc

So, what he's saying; that during regeneration these plugs play an active role .....without them working, the regeneration will fail and DPF will clog up.
another thing that may need a look at is , are your injectors performing properly ..if they are not then this will add to your problems of soot in the dpf.

all the best.mark

This video is based on BMW cars, they do not have a vaporizer in the DPF to inject fuel into the DPF for the process.
My jumbo transit with only one working glow plug has done 15k miles around the city starts immediately in very cold weather and my DPF is nowhere near clogged!!
2014 Mk 8 Jumbo 350 2.2 RWD single rear wheels
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Re: Dpf and Glow Plugs

Postby dumper » Thu Dec 16, 2021 7:41 am

mcbutler wrote:
metalworker0 wrote:Here's a youtube video that explains the relationship with the dpf and glowplugs

Think the mechs who said it was nothing to do with it, are old school and did not know. - perhaps they think wrongly that they are there just for starting the van when its cold ..they are not up to date on things - they have failed to move with the times and educate themselves.

https://www.youtube.com/watch?v=Q4aI0-xIQsc

So, what he's saying; that during regeneration these plugs play an active role .....without them working, the regeneration will fail and DPF will clog up.
another thing that may need a look at is , are your injectors performing properly ..if they are not then this will add to your problems of soot in the dpf.
all the best.mark

This video is based on BMW cars, they do not have a vaporizer in the DPF to inject fuel into the DPF for the process.
My jumbo transit with only one working glow plug has done 15k miles around the city starts immediately in very cold weather and my DPF is nowhere near clogged!!


That’s good to know I have watched the YouTube video and thought that it contradicts what has been on the forum since DPFs have been fitted to transits
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Past camper vans
1974 mk1 v4 with 2.0 pinto fitted
1986 mk3 2.5 di swb
1990 190 lwb 2.5 di
1998 100 lwb 2.5 di
2006 350 jumbo 135 tdci
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Re: Dpf and Glow Plugs

Postby Altransit » Thu Dec 16, 2021 11:08 am

dumper wrote:
That’s good to know I have watched the YouTube video and thought that it contradicts what has been on the forum since DPFs have been fitted to transits

That confused me as well, I couldn't actually get my head around how the engine fired the extra fuel on an exhaust stroke either :? I won't bother trying, now that it doesn't apply to our Fords.

At least that clears up the confusion for good 8)
1994 Mk4 SWB 115 Minibus 70ps Di (R.I.P.)
1997 Mk5 SWB 115 Minibus 70ps Di (Gone, but not forgotten!)
2004 Mk6 SWB T280 Medium Roof 85PS 2.0 TDDi - Vantunered (Also gone)
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Re: Dpf and Glow Plugs

Postby dumper » Thu Dec 16, 2021 11:26 am

Yes Al there is a lot of good info on YouTube but some of the way they do things sometimes makes me cringed yes they get the job done but the method is a bit brutal and completely wrong.
MK 8 L4 H3 Motorsport campervan
Past camper vans
1974 mk1 v4 with 2.0 pinto fitted
1986 mk3 2.5 di swb
1990 190 lwb 2.5 di
1998 100 lwb 2.5 di
2006 350 jumbo 135 tdci
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Re: Dpf and Glow Plugs

Postby metalworker0 » Thu Dec 16, 2021 2:26 pm

There are some posts here that refer to DPF regeneration and oil level rising from excess diesel due to failure of of DPF and a multitude of regenerations in a short period of time, that's what made me think that it was done the BMW way in later vehicles.
There is also mention of wetbelt failure hastened by diesel in the oil from the regenerations.
So you're saying it's still done the old way, which I'm willing to accept and i bare down to users with more superior knowledge than i .

All the best..mark
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Re: Dpf and Glow Plugs

Postby mcbutler » Thu Dec 16, 2021 4:12 pm

metalworker0 wrote:There are some posts here that refer to DPF regeneration and oil level rising from excess diesel due to failure of of DPF and a multitude of regenerations in a short period of time, that's what made me think that it was done the BMW way in later vehicles.
There is also mention of wetbelt failure hastened by diesel in the oil from the regenerations.
So you're saying it's still done the old way, which I'm willing to accept and i bare down to users with more superior knowledge than i .

All the best..mark

That is the way I understand it, the 2.2TDCI engine has a vapouriser fitted into the exhaust to directly inject fuel for the DPF regen process, this would seem to make a lot more sense as the whole system is then outside of the engine and non reliant on an item (glow plug) that is often impossible to remove without taking off the cylinder head.

As I said my van does loads of city miles only, has only 1 glow plug and I have no problems with the atarting or DPF - plenty of problems with the rest of it though !!!!
2014 Mk 8 Jumbo 350 2.2 RWD single rear wheels
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Re: Dpf and Glow Plugs

Postby Altransit » Thu Dec 16, 2021 5:31 pm

Is it a case of the Euro6 2.0 engine doesn't have the same system as the 2.2, hence the oil dilution, and wet belt failures on that engine:?: :?
1994 Mk4 SWB 115 Minibus 70ps Di (R.I.P.)
1997 Mk5 SWB 115 Minibus 70ps Di (Gone, but not forgotten!)
2004 Mk6 SWB T280 Medium Roof 85PS 2.0 TDDi - Vantunered (Also gone)
2008 Mk7 SWB T280 Medium Roof 85PS 2.2 TDCi - Also Vantunered
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Re: Dpf and Glow Plugs

Postby johnporter11 » Thu Dec 16, 2021 5:44 pm

Does the 2.2 Euro6 (i.e. minibus) have a vapouriser?
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Re: Dpf and Glow Plugs

Postby dumper » Fri Dec 17, 2021 9:53 am

johnporter11 wrote:Does the 2.2 Euro6 (i.e. minibus) have a vapouriser?

Yes m8
MK 8 L4 H3 Motorsport campervan
Past camper vans
1974 mk1 v4 with 2.0 pinto fitted
1986 mk3 2.5 di swb
1990 190 lwb 2.5 di
1998 100 lwb 2.5 di
2006 350 jumbo 135 tdci
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Re: Dpf and Glow Plugs

Postby karl » Sun Dec 19, 2021 1:00 am

johnporter11 wrote:Does the 2.2 Euro6 (i.e. minibus) have a vapouriser?


they never did a euro 6 2.2

2.2 was euro 5 upto 2015/2016

euro 6 is 2.0 eco blue engine
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Re: Dpf and Glow Plugs

Postby karl » Sun Dec 19, 2021 1:02 am

dumper wrote:
johnporter11 wrote:Does the 2.2 Euro6 (i.e. minibus) have a vapouriser?

Yes m8


its a euro 5 2.2 his van is a 2014
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Re: Dpf and Glow Plugs

Postby dumper » Sun Dec 19, 2021 9:26 am

karl wrote:
dumper wrote:
johnporter11 wrote:Does the 2.2 Euro6 (i.e. minibus) have a vapouriser?

Yes m8


its a euro 5 2.2 his van is a 2014

The minibus had add blue fitted earlier my 2015 2.2 has it if it was a van it wouldn’t have it Euro 6 regulations came in a earlier for a bus .
MK 8 L4 H3 Motorsport campervan
Past camper vans
1974 mk1 v4 with 2.0 pinto fitted
1986 mk3 2.5 di swb
1990 190 lwb 2.5 di
1998 100 lwb 2.5 di
2006 350 jumbo 135 tdci
dumper
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