2004 Golf S SDI - HELP!

[poona]

Just recently purchased a SDI Golf with 42k on the clock.

I have found that when I drive in 4th or 5th gear at 1800-2200rpm the car is stuttering and kinda jumping until I accelerate through to higher rpm else release the throttle.

Anyone got any ideas what this could be??

n.b. I have ran VAG-COM 7.11 and no fault codes are coming up.
I also changed glow plug 4 as light on dash came on and VAG showd fault. Car now 100% except this stuttering performance. She has 9000 miles until her next service.

[poona]

Anyone?

[Scalipered]

Daft as it may seem, what engine oil are you using? I had a hesitant throttle see attached thread, changed my oil to Castrol Edge runs perfectly now.
Can't explain it, just does.

http://www.vwaudiforum.co.uk/forum/showthread.php?t=25282


As someone on here has already said "Try the simple things first"

Good luck

Peter

[poona]

Blimey, that's mad aint it?!

Thank you very much for the reply. I will surely try this cheap option on thurs as I'm off work then.

Did you just buy a generic oil filter?

[poona]

Also want to ask, how many litres did you buy and how much was it?

[Scalipered]

Halfords... (see thread), thanks to this forum again, and 4.3 litres with filter (Fram CH9463ECOOIL)

http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_21 0681_langId_-1_categoryId_77303

Just for your info (confirmation) click on "cars" on the thread below and follow instructions, it should recommend the "Edge" for the S SDi

http://www.ew2.lubesinfo.com/frameset.asp?sid=156&bid=63&sc=1156&langid=1

Peter

[poona]

I'm not saying you're lying or anything but I just can't see how OIL would effect the performance in the way I am experiencing. It's only apparent from 1800-2200 RPM. Surely if was OIL, it would be throughout ratios. (I'm not veteran mechanic)

I'm struggling to come to terms with shelling out 42.99 + filter for something which may not cure my ailments.

I'm gonna try the MAF from my other Golf SDI in it and see if it cures it. As said before, no faults are showing on VAGCOM.

If it is the OIL then it's a cheap fix compared to say an EGR valve or the like.

Thanks again mate for replying to my thread/problems. Appreciate it and I'll let you know how I get on tomorrow.

[Scalipered]

I know, it doesn't make any sense to me either, I too can't see any logic to it.

I think you're right, it should affect the whole enginge range...:confused:

I would have changed my oil anyway as I was not sure of it's history, the oil was not changed to cure my problem, but the spin off was, it did...;)


I will be interested in hearing how you get on, good luck.

Peter

[poona]

Swapped the MAF meters between the 2 Golfs and VOILA! that's what it was afterall.

Car drives like a different car. Little more responsive too.

Now to purchase a new MAF tomorrow... :'-(

Luckily I have two '04 Golf SDI's!!

[Scalipered]

Vintage mechanic please, not a veteran...;) ha ha ....:biglaugh:

I'm pleased you've cracked it, and I'm never to old to learn, so, whats a MAF meter?

Peter

[Scalipered]

Finally.... after reading about your cure with a MAF meter fitting, and after a little research, I now know what the MAF is, and notably where it is...:D

My conclusion for the oil curing MY problem was that I disturbed the connector on my MAF when I removed the plastic engine cover to change the oil filter as this was very stubborn to remove.

I now think that the oil was not the cure but by disturbing the connector I have inadvertently cured my the throttle problem. I have now removed that plug again, cleaned it, and replaced it.

Simple things eh...;)

Peter

[maitken]

Hi,
I've had hte same fault on a car I've just bought, garage have cleaned contacts on MAF, changed the fuel filter and now just changed the MAF. It did seem better when they changed the fuel filter but after about 15 miles started doing it again. Someone suggested it might be diesel bug, anyone agree ?
Cheers
Mark.

[poona]

Update: new MAF didnt cure problem.

VW in Ireland say they havent sold a single MAF unit to a MK5 golf owner and are convinced it's the EGR valve.

Car has 41k on clock and was last serviced at 25k so it well overdue. I imagine it just needs new oil and filters. Perhaps it isnt running on 5w 30 Edge.

[poona]

Anyone thoughts?

[maitken]

Did a service help?

[poona]

Sold car on - never serviced it.

Will avoid VW for ever more.

Have had 3x Golfs and all have gave trouble.

Pile of junk they are. Dunno where they get their reputation from.

[maitken]

Took mine to VW in the end, they recommended that it would be the flywheel, on removal it was burnt, i.e. purple in colour and distorted. They offered some goodwill towards the replacement so must be a problem with some flywheels. Had to have a new clutch too and the oil seal on the crank shaft had gone too so had to have that done. Luckily the dealer I got the car from paid for it all after a little discussion. Haven't got the car back but the mechanic that did the work said the flywheel was defineatly distorted so looks hopeful. hoorah!

[poona]

You bought it from a dealer from the house?

Did you tell him you were taking it to VW to get looked at? As they charge like x10 as much.

suprised he didnt tell you to take it to a local garage as theyre much cheaper. £70+ just to diagnose at VW.

[Scalipered]

Update: new MAF didnt cure problem.

VW in Ireland say they havent sold a single MAF unit to a MK5 golf owner and are convinced it's the EGR valve.

Car has 41k on clock and was last serviced at 25k so it well overdue. I imagine it just needs new oil and filters. Perhaps it isnt running on 5w 30 Edge.

VW Ireland is correct IMO, my throttle was never 100% but I tolerated it :aargh4:

After a recent alternator pulley failure I had to resort to the supplying garage for a warranty repair, whilst there I asked if my throttle problem could be rectified, they said it was the EGR valve, repaired it, and now the car runs perfectly, well done guys... :beerchug:


This might help too, albeit from another manufacturer...

http://www.fordscorpio.co.uk/egr.htm


Peter

[maitken]

Looks like you were lucky there! Mines had the EGR valve and the controller replaced but still to no avail.(Along with all the other stuff mentioned in a previous post!!) Been with VW dealer all week, and last night they found contaminated fuel, oil in the fuel pump. Left it with them again today for more work. Gotta give it to the dealership though they've been spot on with the way they have handled the investigations. Will post when it's fixed. Hopefully it will be, only had it 9 weeks, not been right since I picked up from the original garage!

[j3ggo]

whats a maf meter?

[Scalipered]

whats a maf meter?


http://www.youtube.com/watch?v=gd640ImE9Ec&feature=fvw


Have a butchers at this...

Peter