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HelenButler
27-04-2012, 11:46 AM
Hi

Apologies for the long post, but I'm running out of ideas. I've got a 2005 Golf Plus se Tdi 1900cc with an alarming problem where the engine cuts outs intermittently, regardless of what speed I'm doing.

Last week, 2 minutes after leaving home in the morning, the engine felt like it was going to stall (it was chugging and lost a bit of power) but I just figured this was due to a cold start and me being in too high a gear for the speed (about 30mph). However, 10 seconds later I pulled up at a junction and on trying to pull away, the engine stalled (but the radio stayed on). I couldn't get it started again - the coil and battery lights came on and a message along the lines of 'engine fault - garage!' came up on the display. The RAC guy plugged in his diagnostic tool and got a g28 fault. The car was towed to the nearest Bosch approved garage and they fitted a new camshaft sensor (although I thought that a g28 fault was the engine speed sensor - is this the same thing??). The car was fine for the next 5 days.

On Wednesday, whilst I was doing 70mph on a dual carriageway on the way to work, the chugging started again. Luckily I was able to slow down and pull into a side road just before the engine cut out (the coil light came on again). This time, after waiting for an hour I managed to get it started again, so I took it straight back to the same garage. No fault code had been recorded so they test drove it for a day to try to get it to happen again (which it didn't) and then finally decided that it might be the relay 109, but on inspecting the fuse boxes, couldn't find it. They therefore replaced relay 100, which seemed to cut the engine when it was removed.

Today, the same chugging is happening (intermittently) but the engine hasn't cut out yet. I use the car every day to take my 18 month old daughter to/from nursery and spend a lot of time on the motorway, so I'm really losing confidence in the car.

Any advice would be greatly appreciated.

Many thanks

Rich2poor
03-10-2012, 09:34 PM
Hello Helen

Did you get your problem sorted out? I have something similar happening only my Golf plus (2007) lost all power while sitting out of gear in traffic. It just died with no lights working, not even the windows. Oddly I tried it again and it started. Approx 2 weeks later it wouldn't start in the morning. The AA had no idea. My local garage have no idea and advised me to come on here! The only suggestion now is going to a dealership. I have read some of the posts on here and the main dealers don't seem to have any answers either!

Let me know if you did sort it out or what it was please.

Thank you

HelenButler
04-10-2012, 04:22 PM
Hi

Yes we have, but literally this week, so it's taken 6 months! It's taken a VW specialist (not a dealer) to try a few different things before finally working out what the problems were (turns out there were two).

The first issue of random stalling following a chugging sensation was discovered to be a faulty lift pump. This was causing oil to be sucked back into the tank and resulted in the tandem pump also failing. Both were replaced, along with the fuel filter, which was also covered in oil. The tank was drained and cleaned (it had lots of oil and black particles in it). Unfortunately, there was so much crap in the fuel system that the stalling kept happening, so I took the car to a different garage in Gloucester and the lift pump was replaced for a second time in addition to new injector seals - this was about a month ago. He checked the lift pump on Monday and took a sample from the tank, and it looks like everything is back to working ok now.

The second issue I've had is my car stalling, but only when it rains. There's no chugging; the engine literally just cuts out. All the lights, radio, wipers etc work, but the engine won't turn over. I basically have to sit in the car for 10 minutes, after which it starts again and will be absolutely fine until the next time it rains. So on Monday the mechanic took a look at the wiring loom running along the bottom of the engine and spotted that an earth cable was running adjacent to a section of wiring loom which had worn away. 4 wires were exposed which were right next to the earth cable. It appears that the factory worker who built my engine back in 2005 had run the two cables together instead of being either side of the engine component and the constant contact and rubbing had caused the loom to rub away, resulting in a short whenever it got wet. The mechanic cut the 4 wires, made new connectors, fitted heat shrink covers and then reran the loom where it should be.

Your problem sounds a lot like mine in that your car just dies. The fact that lights etc don't work may indicate an electrical problem similar to mine. I think the majority of garages simply plug in the VGA system and rely on that to tell them what the problem is, rather then getting under the bonnet and actually looking. It's sort of fixing the symptom and not the problem.

Hope that helps, let me know if you want the details of the mechanic that I use in Gloucester - he's serviced my family's cars for over 10 years and I trust him completely. After 5 months of a local VW dealer trying and failing (and eventually just saying 'we don't know how to fix it') he has sorted both issues out for me.

Samantha1993
15-04-2020, 06:44 PM
Hi Helen could I have details for the mechanic you used as I have recently purchased a 2007 1.9 cdti with The exact same issues minus the stalling thanks

Crystaleyes
08-05-2020, 10:18 PM
I doubt she'll reply to you after all this time but it would help any garage if you noted down the work she said needed to be done in order for the car to work properly.

If there are no diagnostics codes showing, then ask to have the fuel tank checked for any oil, which if there is, then to change the pump which is allowing it to get in to there.


Hope this helps.

mickeybo
08-05-2020, 11:13 PM
check main engine control relay in main fusebox

Crasher
09-05-2020, 01:18 PM
a 2007 1.9 cdti with The exact same issues minus the stalling thanks

It is a PD TDI, (Pump Duse aka pump injector, not Common Rail) the CR TDI comes in 1.6 or 2L formats and from 2009 onwards. Have you have a fault code read carried out?