ollies2208
New Member
Hi All,
First time poster here so please bare with me and apologies for any ignorance in advance. Appreciate any thoughts/insights anyone can offer.
I am looking for some advice on the likely state of my fuel system after uncovering a plethora of issues and fault codes.
Purchased my T6.1 LWB 2.0 TDI Manual 110HP, 2020 plate with 72k miles on the clock just last month as part of a camper conversion with a reputable dealer.
19/06: Drive home, 50ish miles in (out of approx. 120 mile journey) I get flashing glow plug warning, engine management warning, and too much oil warning
20/06: Take it to local autocentre to do oil change, ensuring correct amount of oil. They run a diagnostic and find a number of codes, most of them old/non-critical, but ones of main concern (bold) which come up are as follows:
Back to my main concern, the engine issues.
21/06: A few short local trips later I get the engine management light come on again.
A couple of weeks pass before I am able to return to dealer.
02/07: Travelling back to dealer on ~120 mile journey. Flashing glow plugs, engine management and too much oil lights come on.
03/07: Dealer takes van to local garage, install software update for too much oil. Check oil level, seems correct. Happy enough with that. Thinking it was all related to oil level sensor, I depart, heading north to visit family and show off nice new camper (~400 mile journey). 20 minutes in, engine management, flashing glow plugs, limp mode, struggles at 60mph, 70mph out of the question, 2nd gear to get up minor inclines.
04/07: Take it to Audi/VW specialist up north, runs a diagnostic and smoke pro leak detection test. Detects smoke/emissions/whatever coming from air intake manifold. Advises there is a crack/hole in it. Soot all surrounding the intake manifold. Output from diagnostics as follows:
Take it away camping up west coast for a few days. Struggle with power. Again - engine management, flashing glow plugs, limp mode, struggles at 60mph, 70mph out of the question, 2nd gear to get up minor inclines.
11 & 12/07: Get it in to replace air intake manifold. Photos of air intake manifold attached. Excessive carbon build up, same into the valve ports. EGR pipe down to a pin hole and throttle body all gunked up too which he done his best to clean up while in there.
Installs new manifold but advised that build up on valves can lead to engine misfires and all other manner of issues. Advises that the engine has to be taken apart and cylinders sent away for cleaning.
Sounds like open heart surgery to me.
Mentioned Terraclean, but doubts it will make a dent in it. Phoned a Terraclean place, they are of the same opinion - said it needs properly cleaner out, suggests walnut blasting.
Leave and 5 minutes later the engine management light comes on again on motorway. Take it back to same place, run diagnostics, fault codes as follows:
Sounds like open heart surgery to me.
Mentioned Terraclean, but doubts it will make a dent in it. Phoned a Terraclean place, they are of the same opinion - said it needs properly cleaner out, suggests walnut blasting.
No idea how long the engine has been running like this.
It does seem to be running a little better since the air intake work has been completed. Drove it back down south recently and managed to keep it at 70ish mph most of the way down, engine management on, but feels like it is breathing a little bit better.
Can a carbon build up of this extent have lasting consequences on the engine, even if all the necessary components are replaced? As a campervan, this is a big long term investment for me, and want to make sure I am not going to run into issues further down the line.
Is this likely to be all through the cylinders, valves, EGR, turbo, DPF?
Should I be pushing for a new engine? I don't like the idea of the engine being taken apart, cleaned and put together like some kind of frankensteins monster. Forgive me, I'm a mechanical engineer - not automotive, aerospace, but I know what it can be like.
What should I be pushing for to get this right for the long haul?
Sorry for the long thread, appreciate anyone who lasted until the end and can offer any insight.
Taking it to VW van centre next week for further diagnostics.
First time poster here so please bare with me and apologies for any ignorance in advance. Appreciate any thoughts/insights anyone can offer.
I am looking for some advice on the likely state of my fuel system after uncovering a plethora of issues and fault codes.
Purchased my T6.1 LWB 2.0 TDI Manual 110HP, 2020 plate with 72k miles on the clock just last month as part of a camper conversion with a reputable dealer.
19/06: Drive home, 50ish miles in (out of approx. 120 mile journey) I get flashing glow plug warning, engine management warning, and too much oil warning
20/06: Take it to local autocentre to do oil change, ensuring correct amount of oil. They run a diagnostic and find a number of codes, most of them old/non-critical, but ones of main concern (bold) which come up are as follows:
- Engine Electronics
- P010100 Mass or Volume Air Flow Sensor 'A' Circuit Range/Performance
- P22790 Intake Air System Leak
- P226D00 Particulate Filter Deteriorated/Missing Substrate Bank 1
- P040100 Exhaust Gas Recirc. Flow - Insufficient Detected
- Electronic Central Electric
- B173015 Relay Output Heated Exterior Mirror - Open Circuit/Short Circuit To B+
- Instrument Cluster
- U111000 Function Restriction Due To Communication Interruption
- Information Electronics
- B126D13 Connection Between Radio and Antenna Amplifier 1 - Open Circuit
- B111A11 Antenna 2 For Radio - Short Circuit To Ground (GND)
- Emergency Call Module and Communication Unit
- B1915F1 Online Services - Function Temporarily Restricted Due To Battery Budget
- U111100 Function Restriction Due To Missing Message
- B200049 Faulty Control Module
Back to my main concern, the engine issues.
21/06: A few short local trips later I get the engine management light come on again.
A couple of weeks pass before I am able to return to dealer.
02/07: Travelling back to dealer on ~120 mile journey. Flashing glow plugs, engine management and too much oil lights come on.
03/07: Dealer takes van to local garage, install software update for too much oil. Check oil level, seems correct. Happy enough with that. Thinking it was all related to oil level sensor, I depart, heading north to visit family and show off nice new camper (~400 mile journey). 20 minutes in, engine management, flashing glow plugs, limp mode, struggles at 60mph, 70mph out of the question, 2nd gear to get up minor inclines.
04/07: Take it to Audi/VW specialist up north, runs a diagnostic and smoke pro leak detection test. Detects smoke/emissions/whatever coming from air intake manifold. Advises there is a crack/hole in it. Soot all surrounding the intake manifold. Output from diagnostics as follows:
- Engine Electronics
- P010100 Mass or Volume Air Flow Sensor 'A' Circuit Range/Performance
- P040100 Exhaust Gas Recirc. Flow - Insufficient Detected
- Electronic Central Electric
- Information Electronics
- Emergency Call Module and Communication Unit
Take it away camping up west coast for a few days. Struggle with power. Again - engine management, flashing glow plugs, limp mode, struggles at 60mph, 70mph out of the question, 2nd gear to get up minor inclines.
11 & 12/07: Get it in to replace air intake manifold. Photos of air intake manifold attached. Excessive carbon build up, same into the valve ports. EGR pipe down to a pin hole and throttle body all gunked up too which he done his best to clean up while in there.
Installs new manifold but advised that build up on valves can lead to engine misfires and all other manner of issues. Advises that the engine has to be taken apart and cylinders sent away for cleaning.
Sounds like open heart surgery to me.
Mentioned Terraclean, but doubts it will make a dent in it. Phoned a Terraclean place, they are of the same opinion - said it needs properly cleaner out, suggests walnut blasting.
Leave and 5 minutes later the engine management light comes on again on motorway. Take it back to same place, run diagnostics, fault codes as follows:
- Engine Electronics
- P226D00 Particulate Filter Deteriorated/Missing Substrate Bank 1
- P033000 Knock Sensor 2 Malfunction
Sounds like open heart surgery to me.
Mentioned Terraclean, but doubts it will make a dent in it. Phoned a Terraclean place, they are of the same opinion - said it needs properly cleaner out, suggests walnut blasting.
No idea how long the engine has been running like this.
It does seem to be running a little better since the air intake work has been completed. Drove it back down south recently and managed to keep it at 70ish mph most of the way down, engine management on, but feels like it is breathing a little bit better.
Can a carbon build up of this extent have lasting consequences on the engine, even if all the necessary components are replaced? As a campervan, this is a big long term investment for me, and want to make sure I am not going to run into issues further down the line.
Is this likely to be all through the cylinders, valves, EGR, turbo, DPF?
Should I be pushing for a new engine? I don't like the idea of the engine being taken apart, cleaned and put together like some kind of frankensteins monster. Forgive me, I'm a mechanical engineer - not automotive, aerospace, but I know what it can be like.
What should I be pushing for to get this right for the long haul?
Sorry for the long thread, appreciate anyone who lasted until the end and can offer any insight.
Taking it to VW van centre next week for further diagnostics.
