Ideas NHN/tech/expert/someone had the same pleeeease? TDi 170 cured/not/cured/not!

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Cossie_boy

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Hi all,

Ive been have a couple! of issues with my recent TDi 170 Quattro purchase 6 weeks ago, then on Monday it was 100% fixed, then today, same problems :keule:

To recap, hesitated over 3k revs in 4/5/6th gear, pull, hold back, pull, hold back at almost 1 second intervals and not nice to drive in traffic, almost like big turbo lag pulling away.

Since I had the cars its had :-

New Turbo/actuator
New return and feed pipes
New tandem fuel pump

then on Monday it was discovered the car had been badly? mapped before and the boost control solenoid was faulty.

A new solenoid was fitted and the car mapped by Audi specialist.

Collected and drove home like a dream, poss not as quick in 3/4th as before but still very good and nice in traffic, and then fine Tuesday and Wednesday.

This morning I started it and again it flashed something in the display too quick to read and beeped, done this a couple of times after I first got it, then as soon as I pulled out of drive I felt a jolt in 1st, jolt in 2nd and then sure enough on bypass it was back to hesitating, came home for lunch and same, almost felt like didnt want to rev up when in traffic, called garage and asked me to go back

BUT

then when left work, back to good and drove like a dream all the way there, perfect :unsure:

Turned it off and then when drove home, not as bad but didnt feel right or fast as before.

The garage said to drive it a couple of days and then if does it again take it back and they would keep it a couple of days and test as possibly MAF or boost control sensor.

Can anyone please give any ideas what the hell could be going on? as I am witts end

Many thankls

CB
 
No mate, its apparently been doing it a long time before I bought the car.
 
I think its the ESP fault warning that keeps flashing up, seems to be driving ok again :/

any thoughts guys?

Ive been through and read countless posts of similar stories but none like this!
 
If you havnt done maf or boost sensor then I would try them, but you need to get someone to do some logs of the boost readings with vcds, get someone that knows how to use the logs & check properly, not just someone that changes over turbo's, also, why map it at all until the problem is resolved for an extended period, I would remove the map, get audi to reflash the ecu back to stock, then work on the issue, forget mapping atm as that adds another thing into the equation.
 
Cheers


It was an audi specialist who did the map and boost control solenoid change, they said the values? showed it wasnt giving the correct values and tried the car with new one, then original, then new etc... they have a laptop and software so guess its VCDS.

Yeah I know what you mean, it was their idea to put the map on, to rectify the one someone else had put on badly, not exactly sure how you put it on badly :/

I know where the MAF is and think their about £80? where is the boost sensor located and how much are they roughly?

Besides those, i cannot think what else it could be.

Not sure how normal this is, but randomly it almost feels like in 1st and 2nd if you dont put your foot down enough it feels as if it wants to hold back before it goes :/

I noticed I am getting between 39-43 mpg on a 10 minute journey to work on an A road about 70 ish with the odd open up here and there, is this normal?

Many thanks again!
 
I timed it 0-60 this morning, is doing 8 seconds, the 170s should be 7.9 standard :(

All other cars I've had chipped it seemed to knock about a second off the 0-60

Hmmmmm
 
0.1 of second difference between stated & actual? There's nothing wrong there!

MPG is about right, nothing to worry about there.

If your MAF was knackered you wouldn't evev get above 3k rpm.
 
Thanks Max, only problem is specialist said they put their own map on , so woulld be expecting it to be faster than the 7.9 normal time?
 
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It's not just the 0-60 times that count, You will probably find your 30-60, 50-100 time s are better. Manufacturers claims are a bit, ermmmmm ambitious or you don't have enough driver skill :sm4:
 
Yes indeed mate with the mid range n upper, but all my previous cars definitely had an improved 0-60 which this doesn't :(

Its going back in tomorrow anyway, on the way to work this morning it was hesitating in 2nd at lower revs which its possibly always done but not noticed so much

Sometimes when ive stopped n revved it im sure there is a split second delay as the revs pick up which can be seen on the needle if that rings any bells with anyone?
 
Cossie_boy said:
Yes indeed mate with the mid range n upper, but all my previous cars definitely had an improved 0-60 which this doesn't :(

Its going back in tomorrow anyway, on the way to work this morning it was hesitating in 2nd at lower revs which its possibly always done but not noticed so much

Sometimes when ive stopped n revved it im sure there is a split second delay as the revs pick up which can be seen on the needle if that rings any bells with anyone?[/QUOTE]

That's just turbo lag, affects all turbo'ed cars to some degree, your car has probably always been like that since you bought it, it's only now you have noticed the lag due to your problems.
Click to expand...
 
Yeah I know what your saying as ive had my fair share of turbos but its diffrent to lag, plus these TDi engines now virtually have none anyway

More importantly, I said it hitting 60 at virutally the standard time, despite being told they mapped it, but ive now realised its running out of steam at 4500 rpm, exactly the same as our Golf Match 1.9 TDi, so im starting to think they havent mapped it at all, grrrrrr!

anyone comment on this?
 
Cossie_boy said:
Yeah I know what your saying as ive had my fair share of turbos but its diffrent to lag, plus these TDi engines now virtually have none anyway

More importantly, I said it hitting 60 at virutally the standard time, despite being told they mapped it, but ive now realised its running out of steam at 4500 rpm, exactly the same as our Golf Match 1.9 TDi, so im starting to think they havent mapped it at all, grrrrrr!

anyone comment on this?
Click to expand...

Diesels run out of steam much quicker than the petrol. Have to shift early mate.
 
SAiLO said:
Diesels run out of steam much quicker than the petrol. Have to shift early mate.
Click to expand...

They do indeed mate.
The only one who can help outCossie Boy is the Tuner guy, best to wait and see what he says.
 
Just a thought... but i recall my girlfriends car do this... like it wanted a DPF regen...

we decided to feed the car Shell Ultimate Deseil and after a few refills the car seems to be ok now... not to mention the pipes are no longer black at the back....

It's a long shot but it maybe worth a try.
 
drnutta said:
Just a thought... but i recall my girlfriends car do this... like it wanted a DPF regen...

we decided to feed the car Shell Ultimate Deseil and after a few refills the car seems to be ok now... not to mention the pipes are no longer black at the back....

It's a long shot but it maybe worth a try.
Click to expand...

Good point, I tried using A couple of tanks of super diesel & it massively improved things. Talking to the master-tech who's been working on my car he said they've had a few cases of TDI's refusing to start or run properly on anything less than super. Not really what I wanted to hear bearing in mind the extortionate cost of it!
 
If only it was that easy, lol, but I've been running it on Shell n BP Ultimate since I got it

I noticed driving it to the garage this morning that it did actually pull until nearly 5k afteral

They said they cannot put it back to standard :/. But only put back on the old file which was supposed to be mapped

What a pain in the rear all this is

they said they won't charge for the diagnostics today but implied if it needs any new parts there would because a charge, they have been paid £300 for the map n boost solenoid so I don't know how to best play this as don't feel I should b forking out any money n guess car can't wont either, sigh!
 
Cossie_boy said:
They said they cannot put it back to standard :/. But only put back on the old file which was supposed to be mapped
Click to expand...

You need to get it flashed back by audi, then deal with the issue, as advised already, adding someone else's mapping to an existing issue just makes it worse.
 
Of course, but your tuner wont get it back to oem map without vas or odis anyway so thats your only route atm, then fix the issues, then remap it, pointless mapping really is until issues resolved.
 
Could the garage request a standard file from the place they get these modified files then?
 
I very much doubt they would have the original file, so IMHO no, but the only way truly to get a complete oem file is to goto audi or someone with vas with online gekko connection with vag themselves.

I understand you dont want to pay more money, but in this situation you have no real choice if you want a 100% guarantee of the ecu taken back to the stock map.
 
Thanks for the input mate

but

map aside, they did a smoke test and discovered smoke round the front of the engine, sure enough on removal, the inlet manifold is ****** :sadlike:

so now to do battle with car giant again!
 
You saying the manifold is cracked, loose, or what?

Funnily enough I just bought my A3 from Car Giant and all is OK at the mo. Did you buy the Guarantee from them?
 
My Dad went to the place when they took it off as I couldnt get there, generally worn inside but more so a bit missing off the end? and a plastic flat broken off in a couple of places, **** knows where that went to :/

Soot, no I didnt, shall answer hopefully on Monday with their praises as upto now they have been very good
 
I'm really curious on why you bought the car when you knew of these problems. Cargiant don't do repairs after you bought it, that said you are covered by the sale of goods act, mainly the goods to be of a merchantable quality and of course be safe to drive on the road. Good news tommorow I hope.
 
lol, I didnt know about them when I bought it! You know the 3 minute test drive around the industrial estate where you can just about get out of second gear?! well, if id been on a proper road id of felt the hesitation straight away obviously, but was only once out of London and could open it up that I felt it, i actually drove it home gently as all new etc... and they when I did boot it I felt something not right.
 
You did say in Post 3 "No mate, its apparently been doing it a long time before I bought the car"

:shrug:
 
Soot1 said:
You did say in Post 3 "No mate, its apparently been doing it a long time before I bought the car"

:shrug:
Click to expand...

Yes that also had me thinking, I couldnt understand if you got from car dealer, how you knew it was doing long time before you bought, little contradictive, but alas.
 
Is it far too late to return the car... as clearly your not happy plus there is a problem which they can't seem to fix.

As this sounds like the car is going to cost you a fortune in the long run.

Alisdair
 
Just to clear up the above, bit of a story..

Yes that is correct, I bought from supermarket so had no idea of previous history, especially as log book said leasing company name on it, but, when i was cleaning it out I found a Tesco club card voucher down the side of the seat with a name, connected that to the area the car was always serviced, then after some detecitve work and the help of google I managed to trace the previous owners details, total needle in a haystack but I found a work email address and sure enough it was her, exchanged a couple of mails and then asked could I speak to her on the phone and had a nice conversation with her, so it was at that point she mentioned what she called a flat spot in 4/5/6th gears which had been there from new, she also said she nearly bought it off the company but they wanted too much for it, so if it was a problem car I doubt she would have wanted to keep it!

I am very much hoping to get the car back tomorrow, so shall update once I know 100% that all is well
 
Always helps to give the full picture in advance of asking others for opinions/help :)
 
Ok then chaps!

Have the car back now, its had a MAF and new inlet manifold which cargaint paid for £600 odd quid, so yes I am still happy with rtheir efforts to get this right.

This is what is going to become difficult, I cannot tell if I am waiting for it to do it again or imagining it does not feel right :/

Seems fine in higher gears now, but what I am feeling is literally as you drive off in first gently it seems to want to go and then believe? it holds back and then goes, but i am not sure if this is normal and I am over thinking every little thing its doing, possibly also does this in 2nd but feels fine once it warmed up through the gears, I am sure the map they have put on is not as good as the original one they said was a bad version or faulty as does not feel as fast.

I really need to drive another one, have friends in the trade who have various Golf, Passat, A4 etc... with the same PD 170 but not sure if I should hold out for a A3 Quatrro to drive?

One thing that did just happen for sure, in road works and as crawled along in 1st it kangaroo'd just the once, i do recall reading posts of them doing this after injectors? but it was just the once and dont forget as sad as it sounds I am almost looking for anything wrong before i make the decision to keep and put my plate on etc.. or if to go down the not fit for purpose route, which considering it was sold with a plethora of faulty parts i feel would be a good case, especially if it turns out it does still have the problem.

The tough part is I really luv the car, the looks of meanness from the Xenons, the spec, the colour, and the drive when its ok.

I do as always appreciate any comments of advice.

Cheers

CB
 
I can actually narrow this down even more now, it feels pre-turbo, literally as soon as you pull away in 1st it goes then almost immediately holds back for a second then goes believe it does this 2nd n possibly 3rd n its just as you start off

Ring any bells?
 
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