Glow plug and regen C5 mk1.5

This is the Forum for all your Citroen Technical Questions, Problems or Advice.

Moderator: RichardW

peterg
Posts: 18
Joined: 21 Nov 2019, 10:02
x 1

Glow plug and regen C5 mk1.5

Post by peterg »

The glow plugs on my 2007 2.0 HDI C5 don't work.....when it's very cold my engine chugs a bit after starting - I can live with that but a local mechanic mentioned that he didn't think the DPF regen would work without glow plugs? Is that correct? Replacement looks to be a pain to do - several hours of torture posisbly!
User avatar
GiveMeABreak
Forum Admin Team
Posts: 25968
Joined: 15 Sep 2015, 19:38
x 2958

Re: Glow plug and regen C5 mk1.5

Post by GiveMeABreak »

No not correct. The Glow plugs are sometimes used to help raise temperature post ignition for a matter of a second or 2, and are only used to aid regeneration if required - again for a second or 2, but will not stop regeneration. The engine ECU employs various strategies for raising engine temp including the switching on of consumer equipment like the heated rear screen for example to increase power requirements and the increase the engine loading.
peterg
Posts: 18
Joined: 21 Nov 2019, 10:02
x 1

Re: Glow plug and regen C5 mk1.5

Post by peterg »

GiveMeABreak wrote:
02 Jan 2020, 20:26
No not correct. The Glow plugs are sometimes used to help raise temperature post ignition for a matter of a second or 2, and are only used to aid regeneration if required - again for a second or 2, but will not stop regeneration. The engine ECU employs various strategies for raising engine temp including the switching on of consumer equipment like the heated rear screen for example to increase power requirements and the increase the engine loading.
awesome thanks.....no need to worry about those little blighters then!
User avatar
GiveMeABreak
Forum Admin Team
Posts: 25968
Joined: 15 Sep 2015, 19:38
x 2958

Re: Glow plug and regen C5 mk1.5

Post by GiveMeABreak »

They are not used as much for starting on HDi common rail diesel engines unlike their predecessors, but if you are having cold starting issues and a few of them are out, then it may be worth getting them replaced at some point.
Gibbo2286
Donor 2020
Posts: 5524
Joined: 08 Jun 2011, 18:04
x 1259

Re: Glow plug and regen C5 mk1.5

Post by Gibbo2286 »

There's a pretty good video here for the glow pug change job on the C5 2.0L

Last edited by myglaren on 03 Jan 2020, 12:40, edited 1 time in total.
Reason: YouTube link