EGR valve replacement - Audi A4 B7

[TomKennedy]

Hi,

 

The EGR valve on my Audi A4 B7 2.0TDI has broken, the Butterly valve has bust. I am unsure of the best replacement, I bought a cheaper one and I am getting no power over 2,000rpm, garage said its due to it being a cheap one letting in too much exhaust fumes. Has anyone had this problem, what brand did they go for? the one I removed is 'Volt' but I can't find it online anywhere. 

 

Thanks,

Tom

 

 

[Stevey Y]

Hi if you can get the original AUDI part number and plumb that in to eBay or similar that will probably throw up a lot of branded parts made by other manufacturers, your garage is correct in what they say the EGR is supposed to shut off under hard acceleration as the engine needs as much fresh air as it can get  but the cheap valves leak exhaust gas in to the system at higher revs which pollutes the air fuel mixture thus you have a contaminated compressed charge which won't burn well hence no power, the by product of this is you will eventually kill the cat and turbo as they were never designed to run like that.

Steve.