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Discussion Starter #1
Hi all,
My first post here, just brought a seat toledo 1.9dti its got the asv engine in it iam told it was out of a golf. The engine code is asv207174 and is a rotary distributor pump. The mapping was changed to produce about 140 bhp, when i got it it felt like 140bhp and pulled like a train. Now the strange bit, i work in a garage and decided to change the oil and filter. After much searching i decided to use castrol edge 5w-40 fully synthetic and a vw filter. Did the oil and filter and took for a drive and noticed a slight loss in power it didnt pick up as fast, felt physically sick as i had read that this oil had destroyed a few cams. Before this i had noticed a slight hissing when under load and the oil change might be nothing to do with it. On the pipe that runs at the side of the engine there is like a throtle body with a vacume hose attached i did spray some wd40 on that to make sure it opens freely thats the only other thing i did when i changed the oil, so could that have done something?. Put the car on the ramp and noticed the pipe that comes off the bottom of the intercooler to the turbo has a leak it has been leaking oil out for some time could this hose be the hissing and could this hose cause a power loss, can anybody please suggest a better oil than the one iam useing.
09dogsbody













hSlight hissing
 

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Hi, welcometomyturbodies.
You might have a slight leak from one of the turbo pipes that come from the turbo to the intercooler then up to the inlet manifold. A liitle bit of oil from that pipe you mention seems to be fairly common, my east's the same. I wouldn't worry to much unless the oil level starts going down a lot as there's always a bit of oil in these pipes and the intercooler.
What age of tolly (toledo) do you have? I'm pressuming it's the 110bhp as standard. The thing you oiled I think is the egr valve, at the back on the end of the inlet manifold, drivers side?:)
 

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Discussion Starter #3
Hi Seatman, i have a 2001 toledo and yes it was a standard 110bhp before the re map , think your right about the egr valve it has a large pipe comeing off it to the top of the intercooler, i did`nt know if the oil i sprayed on this vale might have penetrated it and got into the vacume pipe, what oil do you use in your engine? i need something i can get in the uk
Regards 09
 

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I'm just using the recomended 15/40 semi synthetic at the moment, anything that's a decent brand. Tesco are actually selling some castrol gtx at £11.66 for 4l at the mo so I've been buying that. You should have a look at some of the faq's for info. Just use the one for the 99-2004 jetta as most of it's the same mechanically. Here's a few that might be worth a browse.

http://www.myturbodiesel.com/1000q/a4/clean-intake-manifold-VW-TDI-carbon.htm

http://www.myturbodiesel.com/1000q/multi/boost-leak-tester-DIY-check.htm

http://www.myturbodiesel.com/1000q/a4/VNT-turbo-removal-vanes.htm

http://www.myturbodiesel.com/1000q/egr-system-clogging-TDI.htm

You wont need to do everything in there but they might be interesting and give you some ideas.:)
 

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Discussion Starter #6
Hi all,
Found the problem just as seatman said it was the pipe that comes of the turbo and joins the one thats attached to the intercooler. The one fits inside the other with a seal on it just a large o ring, the two are held together buy a clip, seems a bad way to join the two together considering the pressure inside them, going to cost about £65 for the two. Think i will build my own up with a silicon and stainless setup.
09:D
 
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