[prhim]

Has anyone else with a 3.0TDi experienced a kind of stutter when starting the engine? Every now and then (although getting more frequent), I turn the key, the engine seems to catch, then dies for a fraction of a second before catching again. Very weird.

Any ideas or similar experiences?

 

[CovRob]

Has anyone else with a 3.0TDi experienced a kind of stutter when starting the engine? Every now and then (although getting more frequent), I turn the key, the engine seems to catch, then dies for a fraction of a second before catching again. Very weird.

Any ideas or similar experiences?

Nope, not noticed this symptom. The motor has turned over a few more times before firing recently, but I just attributed this to the outside temperature dropping. :think:

Rob

 

[chrisbin]

 

[prhim]

Did it again yesterday. A trip to the dealer is in order, methinks.

Thanks anyway.

 

[G2SYK]

Did you ever get to the bottom of this fault? Mine?s has had this problem for about 8 mths. And is getting worse. Sometimes it does not start. Seems to just lock up.

 

[kudurain]

Hi everyone

I've been an infrequent visitor for a while. Have had this "hesitant" starting problem for a while but becoming more frequent. Starts to turn over when starting, hesitates for 1-2 seconds, then continues to turn over & start. Have had a couple of instances where it turns over once then nothing and I have to turn the key again to get it to start.

Had it in to my local dealer (who are usually quite helpful). They diagnosed it to be either a "terminal 30 power supply relay" problem OR an ECU problem. Had the supply relay replaced yesterday & had the problem recur today. I guess its back in to try get the ECU replaced. They wouldn't order it in until they had tried the relay as the ECU is ?750 & they say that they can't return it to VW once ordered, even if they don't use it.

Any other ideas & suggestions would be appreciated.

Many thanks

 

[Tyred]

Mine did this, the dealer thought it may be a faulty cell in the battery, they put a new battery on and it seems to have fixed the problem.

 

[DABOSS R5]

I have he above problem also.
Happened to me once earlier this year probably 9months ago. I never took it in to dealer because it never did it again.
Today however the car refused to start, after turning the key the engine would briefly start and die immediately.
I removed the key and tried again but same problem. After about 10 attempts and 10 or 15 mins the car started.
This evening I had to move my car in the office car park and the same thing happened again - after 4 attempts it started properly.
WHAT is going on??
I am booking it in to VW but would appreciate any info regarding this problem before VW start charging me to replace bits they THINK might be the problem.

 

[Kaine]

only an idea, but could it be the loose battery connections raising its head again? or even something else battery related?

 

[Tregtech]

Hi folks

Had this problem last week and it only happens to the 3.0 l diesel when warm and switched off for a few minutes. Its quite a complicated system and the switching path for power to the starter motor. Your ingnition switch sends a signal to kessy(immobeliser Control Unit) and kessy then switch the starter relay in the fuse box in left of the plenum chamber.
That relay then switch power to the starter solinoid who then kicks the starter motor into life.

It could be any thing from a control unit to a relay to wiring to the starter motor that could cause this issue.
A faulty battery - no then the engine would crank slow or not at all or the battery would go flat and charging sufficiently.

What i found or thought could be the problem were the power supply relay in the fuse box. the supply side of the relay (Terminal 30 ) were quite loose fitting into the female end into the fuse box. So i stuck a small screw driver into the connectors and bend the pins a little bit closer, so its a nice and tight fit in there.
I thought the engine cranked a little bit faster after that.

I ask the customer to phoned me back as soon as it happens again , but no word so far. So i can only assume its fixed

Good luck
D

 

[AlexB]

Hi,

I get a 10 second pause after pressing the start button on very cold mornings. Haven't been too concerned as it is always exactly 10 seconds and only on frosty mornings.

 

[Tregtech]

Hi Alex

Thats normal. Push button ( key less ) start does take a about 2 seconds longer than normal starting. frosty mornings just add to that.

D

 

[dorset_treg]

Pause on cold mornings is due to the glow plugs having to work slightly longer to get diesel to ignite......

 

[whooosh]

I know this is late as a response and your problem is probably long fixed but you/anyone looking here for a similar diagnosis might care to look at this post..... http://www.mytreg.com/big-smoking-problem--t5759.html