activa Posted March 3, 2005 Report Share Posted March 3, 2005 Went to look at a 130 TDI this morning for my friends Dad. Car looked nice and hadn't had any major body repairs.Had 75k on the clock and had been company owned and therefore all main dealer servicing and repairs. Everything was looking rosey until the test drive. It felt gutless to be honest and I need to know whether I was expecting too much from it or if it had a problem.Now I realise that 130bhp in that weight car is not loads but I assumed that the torque would be very noticable.However,it wasn't! It almost felt like the turbo went to spin-up and then decided not to. Any views would be appreciated as the perspective buyer really liked the car and I'll feel bad if I put him off it without good reason! Link to comment Share on other sites More sharing options...
UBM Posted March 3, 2005 Report Share Posted March 3, 2005 I have an A4 130TDI and the torque and boost are amazing. Sounds like this might be a donkey... Link to comment Share on other sites More sharing options...
activa Posted March 3, 2005 Author Report Share Posted March 3, 2005 Thanks CM,that's all I needed to know!! I'll make sure he steers clear of this one! Link to comment Share on other sites More sharing options...
UBM Posted March 3, 2005 Report Share Posted March 3, 2005 You should be able to hear the turbo spin up and about 2000rpm it should give you a bit of a kick and some extra torque. Perhaps the turbo is broken? Link to comment Share on other sites More sharing options...
activa Posted March 3, 2005 Author Report Share Posted March 3, 2005 Thing is,it was replaced at main agent after 25k or something like that,so I would question whether it was already shot again.By the same token,I was shocked it had needed one so early in its life anyway.After all,they can't be running that much boost and so should be fairly unstressed. Oh well,I guess we'll find him one elsewhere! Link to comment Share on other sites More sharing options...
Rustynuts Posted March 3, 2005 Report Share Posted March 3, 2005 Go back and unplug the MAF, then take it for a spin. If it flies, then a new MAF at about £90 will sort it. Another thing. Timing belt? People get rid of these just before the belt needs replacing. £350 odd will cover it. Link to comment Share on other sites More sharing options...
activa Posted March 3, 2005 Author Report Share Posted March 3, 2005 It was a dealer that had the car and he thought it was down to the MAF too.So he fitted a new one while we were there-took it out again,exactly the same! When you say timing belt,do you mean it may have slipped a tooth? Link to comment Share on other sites More sharing options...
Rustynuts Posted March 3, 2005 Report Share Posted March 3, 2005 No, just that if you do buy it and it needs doing, allow for it in the budget. The turbo VNT mechanism might be sticking and not giving enough boost? Link to comment Share on other sites More sharing options...
activa Posted March 3, 2005 Author Report Share Posted March 3, 2005 Oh I see,didn't know it was that dear to replace and that is a very helpful pointer when I take him to view others. I say that 'cos this one is losing its appeal the more I think about it.Whenever I've sold a car I've always made sure it's as good as poss. when being viewed-and that it is at least running right.If this guy couldn't be bothered to sort it then he doesn't deserve his profit anyway.And if he couldn't sort it,then it's probably not worth having. Just for the record,what's the VNT? Is this the VAG actuator or something? Link to comment Share on other sites More sharing options...
Rustynuts Posted March 3, 2005 Report Share Posted March 3, 2005 VNT = Variable Nozzle Turbine. A vaccuum operated system which changes the airflow over the Turbo blades to give more boost when required. This is what it does. If the moveable vanes get carboned up, then the system doesn't move when full boost is called for, and no power. Link to comment Share on other sites More sharing options...
asta Posted March 4, 2005 Report Share Posted March 4, 2005 yeah, the tdi130 should not feel gutless. Even for me after my two previous cars were more powerful and lighter. Link to comment Share on other sites More sharing options...
reggaboy Posted March 30, 2005 Report Share Posted March 30, 2005 just to chip in, althought this thread may be dead. i have a passat pd 130 tdi 2001 and it goes well when the turbo kicks in. you can def' tell when it does! mine however stops working after a little while, it seem to be when it gets hot. can anyone suggest any likely causes and the cheapest way to sort it. i'm not to bad with a spanner. Link to comment Share on other sites More sharing options...
shao_khan Posted March 30, 2005 Report Share Posted March 30, 2005 Welcoem to TYresmoke. Can you give more of a description - is it that power tails off or does the turbo physically stop or something else? Link to comment Share on other sites More sharing options...
reggaboy Posted March 30, 2005 Report Share Posted March 30, 2005 thanks for a quick response. for the first few minutes, if the engine is cold, the turbo comes in at about 2000 revs and everything seems fine, plenty of power. then, i guess when it gets hot, the turbo does not seem to operate at all, no sound of it starting and no power at any rev level. Link to comment Share on other sites More sharing options...
Rustynuts Posted March 31, 2005 Report Share Posted March 31, 2005 Sounds like you're getting limp mode. Do you know anyone with "Vag com" who can scan your ECU for fault codes? Have a read at this thread, and see if any thing sounds like what you're getting. The engine isn't the same, but the principle doesnt differ really for this purpose. All the VNT control system is the same. Link to comment Share on other sites More sharing options...
reggaboy Posted April 1, 2005 Report Share Posted April 1, 2005 hi there, i have had a good read like you suggest and it def' seems like limp mode. i understand that i should check the movement on the VNT? should be 3/4 inch when reving. check vacum hoses and pull off the one on the EGR? valve and plug it. should this stop the fault or should it make no drifference and if it does then that is at fault? can you tell me where these are on my vechile please/////////. not got a workshop manuel yet. Link to comment Share on other sites More sharing options...
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