Hi all, first post here but I can see loads of really useful info. I would really appreciate to hear if anyone has experienced the same as me.
Allroad, 2018 3.0 BiTDI, approx. 90k miles. On start from cold only, diesel vapour from exhausts and when pulling away with a very light throttle application, jerky / kangrooey. Goes away after giving a little bit of wellie. I could live with this but my exhaust is sooting up on both sides. I note it has one DPF per side so I am ruling out a cracked DPFs as the likelihood of this occurring simultaneously I guess is low.
DPF regens appear to be increasing in frequency and according to my reader, occurring before the calculated soot level reaches a normal trigger level. I am therefore assuming the DPFs are becoming blocked and the regen is being triggered by back pressure.
Any previous experience that anyone can offer? Already spent a lot on diagnosis including injector testing and glow plugs, where else could this fuel be coming from to cause such sooting? EGRs seem to be a common issue but I cannot see a link to the soot and cold start diesel vapour and according to the technician it is working as it should but it has not been physically inspected.
Allroad, 2018 3.0 BiTDI, approx. 90k miles. On start from cold only, diesel vapour from exhausts and when pulling away with a very light throttle application, jerky / kangrooey. Goes away after giving a little bit of wellie. I could live with this but my exhaust is sooting up on both sides. I note it has one DPF per side so I am ruling out a cracked DPFs as the likelihood of this occurring simultaneously I guess is low.
DPF regens appear to be increasing in frequency and according to my reader, occurring before the calculated soot level reaches a normal trigger level. I am therefore assuming the DPFs are becoming blocked and the regen is being triggered by back pressure.
- DPFs definitely present
- Injectors removed and tested by Bosch – no faults.
- Glow plugs all replaced and confirmed as working.
- No fault codes.
- EGR position feedback suggesting this is working normally - could this be wrong?
Any previous experience that anyone can offer? Already spent a lot on diagnosis including injector testing and glow plugs, where else could this fuel be coming from to cause such sooting? EGRs seem to be a common issue but I cannot see a link to the soot and cold start diesel vapour and according to the technician it is working as it should but it has not been physically inspected.
