Help Passat B7 smoke and engine knock
-
- Enlisted
- Posts: 4
- Registered for: 6 years 3 months
Help Passat B7 smoke and engine knock
Good Day,
I need your expert advice please. My 2013 Passat B7 TDI common rail smokes and knocks on first start every day. Here is a link to a video I took this morning.
https://www.youtube.com/watch?v=GmVHMttp3ok
Some background. In August the dreaded cambelt skipped a few teeth and the head got destroyed. I had the head replaced with a recon unit bought from SAC Engineering. The smoke and diesel knock problem started after that. The gentleman who installed the new head has no idea why this is happening. We even had all the injectors pressure tested and the are all ok. No errors on VAC.
This is happening only on the first start in the morning. The car has exactly the same amount of power, and the fuel efficiency has not decreased. Basically everything is the same as it was before except for the smoke and engine knock on cold start.
I welcome you to please help me brainstorm this. The cambelt issue cost me over R40k, so I cant spend much more.
Kind Regards
Gustav
I need your expert advice please. My 2013 Passat B7 TDI common rail smokes and knocks on first start every day. Here is a link to a video I took this morning.
https://www.youtube.com/watch?v=GmVHMttp3ok
Some background. In August the dreaded cambelt skipped a few teeth and the head got destroyed. I had the head replaced with a recon unit bought from SAC Engineering. The smoke and diesel knock problem started after that. The gentleman who installed the new head has no idea why this is happening. We even had all the injectors pressure tested and the are all ok. No errors on VAC.
This is happening only on the first start in the morning. The car has exactly the same amount of power, and the fuel efficiency has not decreased. Basically everything is the same as it was before except for the smoke and engine knock on cold start.
I welcome you to please help me brainstorm this. The cambelt issue cost me over R40k, so I cant spend much more.
Kind Regards
Gustav
- panic-mechanic
- Panic's Place
- Posts: 26715
- Registered for: 21 years 7 months
- Membership No: 79
- Location: Benoni, putfontein.
Re: Help Passat B7 smoke and engine knock
possibly leaking / dripping injector. if an injector leaks or drips after shutdown you might have that issue on startup if it had dripped fuel in liquid form into the chamber.
Other than that have you checked for correct temperature in vcds ie. that it reports cold when it is cold.
Other than that have you checked for correct temperature in vcds ie. that it reports cold when it is cold.
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
-
- Enlisted
- Posts: 4
- Registered for: 6 years 3 months
Re: Help Passat B7 smoke and engine knock
Thank you for the response.
I don’t have a vcds to check. Is it possible to unplug the sensor so that it reports cold? If so, where can I find it?
Thanks
I don’t have a vcds to check. Is it possible to unplug the sensor so that it reports cold? If so, where can I find it?
Thanks
- panic-mechanic
- Panic's Place
- Posts: 26715
- Registered for: 21 years 7 months
- Membership No: 79
- Location: Benoni, putfontein.
Re: Help Passat B7 smoke and engine knock
no if you unplug the sensor it will jut cause another fault in the management
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
- Carel040
- Cadet
- Posts: 206
- Registered for: 7 years 2 months
Re: Help Passat B7 smoke and engine knock
Hi Gustaf
Where are u based
Sent from my ALE-L21 using Tapatalk
Where are u based
Sent from my ALE-L21 using Tapatalk
-
- Enlisted
- Posts: 4
- Registered for: 6 years 3 months
Re: Help Passat B7 smoke and engine knock
Hi Carel,Carel040 wrote:Hi Gustaf
Where are u based
Sent from my ALE-L21 using Tapatalk
Im based in Pta.
Thanks
- Carel040
- Cadet
- Posts: 206
- Registered for: 7 years 2 months
Re: Help Passat B7 smoke and engine knock
Hi Gustaf het jy al jou problem op gelos
Sent from my ALE-L21 using Tapatalk
Sent from my ALE-L21 using Tapatalk
- panic-mechanic
- Panic's Place
- Posts: 26715
- Registered for: 21 years 7 months
- Membership No: 79
- Location: Benoni, putfontein.
Re: Help Passat B7 smoke and engine knock
In pretoria contact thos guy. Trevor greene 0833095033
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
-
- Enlisted
- Posts: 4
- Registered for: 6 years 3 months
Re: Help Passat B7 smoke and engine knock
Hi CarelCarel040 wrote:Hi Gustaf het jy al jou problem op gelos
Sent from my ALE-L21 using Tapatalk
Nog nie.
Gustav
- Carel040
- Cadet
- Posts: 206
- Registered for: 7 years 2 months
Re: Help Passat B7 smoke and engine knock
Ok Bel my pel Thavishen +27718701411 hy het VCDS Kan jou Kar scan en se wat die fout is
Sent from my ALE-L21 using Tapatalk
Sent from my ALE-L21 using Tapatalk