Turbo problem

**chrisvrscrx** · 18-05-2007,05:34 PM

Right hello to everyone I am new and I've got a problem. I have a 2004 passat tdi 130 bhp highline with 86,000 miles, I was driving on the motorway at about 80 put my foot down to overtake and got very little power, I stopped tured the engine off and started again the car revved fine until about 3200 rpm then the power went again. the emisions light came on the dash and the display pannel said EMISIONS WORKSHOP! the power was fine until 3200 rpm then the power died i kept my foot on the gas as the power dropped off and loads of smoke came out the back. I took it to a vw garage straight away, the put it on the fault finding thing and told me the turbo needs replacing and the total cost including parts and labour is a reasonable £1500 (whatever!!).
Has anyone else had this problem and wat did you do, is the dealer havin me on?? i dont know
If i've left anythink out just let me know by the way i have only had the car two weeks!! Great
many thanks in advance,
Chris.

PS i'm not sure if its a B5 sorry

**ini** · 18-05-2007,05:56 PM

The ******* trying to sell you a new turbo when you dont need one is unfortunately a very common practice.

Although it is remotely possible that your turbo is damaged in some way, it probably just needs a MAF, or the VNT mechanism cleaning, or a new boost control valve.

Before now dealers have sold new turbo's to people when the problem could be solved with a 50 pence piece of boost control tubing, or simply re-attaching a hose.

Search for 'overboost' problems in the forum, there are only a few common things that cause your symptoms.

**chrisvrscrx** · 19-05-2007,12:53 AM

After driving it after getting it back, iwaited until it was warm (the warning light now removed at the dealers) I booted it it first and it reved up to the red line then in second it dropped off at 4,000 rpm then 3rd at 3,800 ish the turbo whistles i know this isnt norm as i had a fabia vrs i know it spins up when idleing but not the way this is i can hear it over the engine. I dont know why they said its ****** if it went all the way to the red line no problem, please help i just bought a house and cant afford it,
cheers Chris..

**snapdragon** · 19-05-2007,11:54 AM

It sounds like a pipe has popped off, and the pressure that the turbo is producing is leaking out as a big hiss instead of going into the intake manifold and making the car go faster. The black smoke with so symptoms, strongly suggests this. The air has already been measured by the MAF, but is not finding it's way into the combustion chamber. This means that the amount of fuel calculated is based on the air quantity which is hissing out, so lots of smoke.

You need to go to a better garage, or follow the pipes with a torch (the large 3" dia air pipes). You may have to remove the front bumper to get to them.

but if you have a haynes manual this isn't too hard at all.

I suspect the dealer employee will put you a new turbo on, put the pipe back on, send you on your way happy and £1500 poorer and then sell your ok turbo on ebay for £200.

**Dozz** · 19-05-2007,11:48 PM

Little trick to try when looking for an air leak like yours is to spray some carb cleaner on all the joints on the inlet pipe if there is a leak it sucks the cleaner in and the revs will rise

**mikespain** · 20-05-2007,08:49 AM

I would not spray carb cleaner to check for leaks on a diesel there is a possibility of damaging it ,as with easy start the engine will knock. Is your engine check light on?If so do you know what codes were given when the garage scanned it?I'm pretty sure there is not a code that says-TURBO NAAFED.without the codes it is difficult to pinpoint the problem as the turbo is controled by various sensors

**chrisvrscrx** · 20-05-2007,01:07 PM

He never give me the code. ill phone up and ask in the mean time ill start lookin and taking all the covers off and let you know what i find oh yeah the light has been reset now and its not come back on

**chrisvrscrx** · 20-05-2007,05:57 PM

Ive had a look and can't find any leaks but i did find that the actuator was full of oil although it moved freely. i took sum pics of oil coming from a small hole the oil gets spat out when the engine is revved there is a hole on the other side where the oil is cummin out

**Huweth** · 20-05-2007,08:10 PM

I just went to check my car for comparison. I thought at first there was meant to be a pipe connected to that hole you talk of, the one you can see in the picture, but there is not.
I'd say the EGR is knackered.