I am beginning to have issues getting my van to start, normally after I've done a journey and everything is hot. Turning the key it then spins over but dies quite violently (flywheel noise). I also find that I've got some clutch 'judder' when the vans up to normal running temperature. Has anyone else had this? It seems to be getting worse with time and I'm getting concerned that its going to leave me stranded.
What engine and mileage?
Get it looked at, could be a failed lift pump which is not feeding enough fuel to the High Pressure Pump (which can cause damage and is expensive to replace) or a leaking injector(s) which could at best cause dilution of engine oil, at worst put enough fuel into one cylinder to cause a hydraulic lock and bend a rod (also very expensive to rectify)
Hi, mine has done this for a while now & VW can't find the fault. It's a 2021 T6.1 110bhp too & just hit 35k. Only misses occasionally when warm & can take 3 or 4 attempts to fire. Battery is OK.
Wondered if an injector or something to do with regen which dumps fuel into the cylinder on the exhaust stroke because it seems as though the engine is hydrolocking. Started doing it just over 20000 miles & is currently with them again, I'll let you know if they find anything
Wondered if an injector or something to do with regen which dumps fuel into the cylinder on the exhaust stroke because it seems as though the engine is hydrolocking. Started doing it just over 20000 miles & is currently with them again, I'll let you know if they find anything
Hi, on top of the starting issue, my van started randomly giving lots of faults on start up ( acc unavailable, parking manouvere assist unavailable, front assist unavailable, headlight range control fault, stop/start fault etc etc, power steering wasn't working).
Because the local Van Centre were so completely uninterested I took a gamble on the battery, changed it and had it coded to the van, and, (touches wood),
it has cured the starting and all the other electrical faults.
Might be worth a shot?
Because the local Van Centre were so completely uninterested I took a gamble on the battery, changed it and had it coded to the van, and, (touches wood),
it has cured the starting and all the other electrical faults.
Might be worth a shot?
Olly Jackson
Member
Any further info on this? Pretty sure its what mine does. 2021 t6.1 110ps 60k miles. Never when cold.its always after a journey, last time id been driving for 2.5 hours solid so very warm etc stopped for 5 minutes to take a leak then van doesn't start. Turn key and engine makes this god awful rattle like whole engine shaking but not turning over. Then maybe 4 or 5 key turns later it'll go. Im pretty sure now though that it starts because I've put my foot on the throttle like and older car etc.
I've just had fly wheel replaced and its instantly failed so getting it replaced under warrenty...
I'm no mechanic but Not starting when hot sounds like a fuelling issue to me, VCDS should be able to tell you what fuel rail pressures are to check or try turning key on and off a few times to prime the pump before starting. Might be lift pump, HPFP or injector leak down when hot. I wouldn't have said it was the flywheel as that shouldn't have any effect on it apart from noise from dual mass bits if they were worn.
Olly Jackson
Member
The fly wheel has been a nightmare would be when cold not every day but like a washing machine with a brick inside it stopped with depressed clutch. Got new fly wheel, clutch, water pump, auxiliary drive belt, cam belt for £2050 (extras my suggestion as 60k miles thought best get out way. Upon collection engine management light was on saying adblue problem garage claimed nothing to do with them just bad luck but turned out it was them a wire had been pulled lowering gearbox or something. Noticed a couple of days later the very same washing machine brick noise so ita now been sever weeks of listening to the engine every morning like gollum or something preying to here noise to film it which after several successful videos I've achieved so now garage replacing flywheel again under warrenty. Any opinion on this??
It could be by chance but I do turn ignition on several times when it wont start and turn all radio fans lights etc off and do like a glow plug wait before throttle and key turn gets it running. Sure its the stupid stop start thing ruining the engine so annoying cant permanently be off
Olly Jackson
Member
Mines got a few gremlins often says child lock fault and like yours acc deactivated and notice the stop start symbol often appears with a line through it. The start failure does always happen when engines been off but ignition on/radio. How much was battery? Dont understand why that would fix anything.
Olly Jackson
Member
And no other problems since?
