T6 Flashing Coil light - NO FAULT CODES

P164b00 update
replaced low pressure sensor (yellow) (twice) one from TPS vw part and one from Amazon FEBI - no change
New oil filter and Castrol edge 5W-30 LL oil.
replaced high pressure sensor(brown). no change
replaced oil pressure regulating valve. no change
dpf chemically cleaned. no change
Oil pump replaced and sump cleaned. no change.

oil usage is about 1L every 2k - mainly motorway mileage.
2017 Sportline 101k miles - dose not smoke at all -
The no fault code was caused by cheap scanner - a pro snap on one reads the p164b00.
the cheap scanner which is permanently plugged in does not read this code but erases the fault
while driving. When engine is warm ie oil temp 100 deg fault will occur if revs exceed 3.5k sometimes
then goes into limp mode.

Not sure what to do next.....? any ideas ?
If it’s sucking oil it’s time to go. Get rid before if costs you a bomb.
 
Genuine parts ?
If you could get hold of VCDS you could run live data logging on the sensors to make sure they are working correctly.
 
Hi - yes ALL genuine VW parts from PTS. The Green low pressure sensor has been changed twice. Used a FEBI first then a VW part from PTS
no change. With a mates pro snap-on you can see the sensors/valve are working correctly. Having spent close to £4k on Van - was hoping not to invest
in VCDS but doing this will be alot cheaper than taking to diagnostics team. Going to do a pressure test next on reflection should of done this much earlier
however the P16400B fault is a bit of red herring as it indicates Malfunction of the Low pressure sensor when it can be other things causing this - its just pin pointing
what this is. These CXEB 2017 engines appear to be plagued with faults once the mileage increases ! If I had found this forum before - then would never have bought a VW Sportline.
 
Thanks for the comments. The fault started after a vw specialist service and despite all efforts with a mechanic mate and pressure test ok...
And all parts above replaced and 2 oil services with castrol edge mixing 5w40 with 10w40 holds back the flashing coil light when engine is warm.
Enough to move this shite on - before it's costs me any more....in for close to 10k including loss when sold. It looks like these CXEB twin turbo engines
Have some serious problems and a potential life of 100k miles before a new block is required...been lucky all my life buying commercials
As work vehicles...so odds were was due a bad one..?...and before anyone says vcds I have taken it to 2 vw specialists only to find the fault appeared the next day....with both garages saying more diagnosis at my cost.....these vw 204 dsg's appear to be cash cows when they get to a certain mileage.
Anyway have a newish van now...not vw....happy days.
 
T6 2017 Sportline - after driving the van for the first 90 seconds glow plug light starts flashing . Drives perfect - and if you stop the van and restart it - the flashing light
will not come on for rest of the day. I have plugged an OBD2 scanner in while driving...NO FAULT CODES - however if you goto erase faults it clears the flashing coil light while driving along?
The van drives perfect - no flashing coil light above 3k revs like before I have had the van for a yr now....and had this problem before but with codes. first visit to garage oil pressure sensor solved it. 2nd visit glow plug no2 fault so changed all 4...van would start after this so all 4 injectors were replaced....so has now become expensive...All the lights work and appears everything else....is it the scanner do I need to take it to a garage with a more sophisticated scanner? I thought VW vans were meant to be reliable not a constant financial drain...!! First test tomorrow is battery voltage check....but if anybody has any ideas on this...it would be much appreciated..!! thanks
They’re a money pit sadly, I don’t think anyone really solves the issues, they just keep chucking parts at them until they give up and sell them on, which is where I am at the moment. VW’s are terrible and have shattered my dream of ownership
 
They’re a money pit sadly, I don’t think anyone really solves the issues, they just keep chucking parts at them until they give up and sell them on, which is where I am at the moment. VW’s are terrible and have shattered my dream of ownership
Shattered my dreams and bank account too. Having driven a friend's 204 highline I thought this van would be great for getting my motorbike around the country. 3 months of looking at both dealers and private Found a 204 sportline 85k miles original with fsh. All was great until 3. Months later the drive shaft went - had an oil service done at same time as repair. This is when the flashing coil light nightmare started...after changing sensors twice regulating valve oil pump...had 2 vw specialist look at it and said all done....only for the fault to appear next day..was striped for new injectors glo plugs ...so yes alot of parts...alot of costly diagnostics....the van went in limp mode sometimes on motorways when high up in revs....the only way I could hold back the fault was thicker oil...but the coil light would flash sometimes...it was also starting to drink oil....no takers on Ebay or autotrader...so it went through a trade auction via a friend. Has not been a pleasant experience....having driven transits all my life...with minimal problems...have a newish transit...in my opinion these vw 204 cxeb vans are a ticking financial bomb....!!!..what's wrong with yours?....and if it's like mine move it on ....and draw a line under it..
 
Shattered my dreams and bank account too. Having driven a friend's 204 highline I thought this van would be great for getting my motorbike around the country. 3 months of looking at both dealers and private Found a 204 sportline 85k miles original with fsh. All was great until 3. Months later the drive shaft went - had an oil service done at same time as repair. This is when the flashing coil light nightmare started...after changing sensors twice regulating valve oil pump...had 2 vw specialist look at it and said all done....only for the fault to appear next day..was striped for new injectors glo plugs ...so yes alot of parts...alot of costly diagnostics....the van went in limp mode sometimes on motorways when high up in revs....the only way I could hold back the fault was thicker oil...but the coil light would flash sometimes...it was also starting to drink oil....no takers on Ebay or autotrader...so it went through a trade auction via a friend. Has not been a pleasant experience....having driven transits all my life...with minimal problems...have a newish transit...in my opinion these vw 204 cxeb vans are a ticking financial bomb....!!!..what's wrong with yours?....and if it's like mine move it on ....and draw a line under it..
Fuel dilution = increased wear on engine and turbochargers, guaranteed regardless of software, oil levels, VW’s opinions, etc.
If find it incredible that the person speaking in the video has;
1. Not insisted on an oil change.
2. Is undecided over the value of a 35 quid oil analysis.
Personally I wouldn’t touch one of these vans, it’s a ticking time bomb, ready to go off just outside warranty.


Fuel dilution seems to be a common issue, 2% caution level, 4% alert level. Results in sub-standard lubrication on what is a fairly highly tuned diesel engine
 
Fuel dilution seems to be a common issue, 2% caution level, 4% alert level. Results in sub-standard lubrication on what is a fairly highly tuned diesel engine
I don't know where the oil was going - no leaks - no smoke from exhaust- engine sounded fine - the 2 so called vw specialist did no oil analysis
My mate is a mechanic says possible bearings or bores are worn....it wore me down....yes these are highly tuned diesel engines with life expectancy of 100k or the vw warranty period. Got a 08 plate Nissan pickup with 170k on the clock for light sitework not a single problem...if you Google most reliable van vw are high on list....reliable to 90k...then yes a ticking time bomb...I will never touch a vw van again.
 
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