Cx7 2.2 diesel 2011
 

Scr malfunction contract dealer.has something to do with adblue..adblue tank is full.mazda thinks it is my adblue tank may need replacing at a cost of 6000 + that is just to much.has anyone else had this problem????

I had had this on my wife’s CX7 last year. Dealer diagnosed a faulty Ad blue injector. Cost about £470

Regards

Matt

Seen it a few times. Its annoying as its all 1 unit & not separate parts.

Adblue
 

Anyone know how to get to the DEF tank to drop it. Cant find a guide.

Best I can do,

https://cimg8.ibsrv.net/gimg/www.maz...35e2b0f9c2.png

I appreciate this is a response to an old thread, but I've had a similar issue with my def system and my mechanic is suggesting a failed heater element or def pump or both. I've found a supplier for both parts made by Bosch - much cheaper than buying the complete system from Mazda.

Alternative supplier?
 

Hi Dave

Who was the alternative supplier that you found? Do you have a link you can share?

Thanks

I found buycarparts.co.uk. Although it's a .co.uk domain address they are based in Berlin and have several other trading names that offer the same parts at differing prices. In the end, my issue turned out to be an electrical glitch that didn't require new mechanical parts.

Cx7 issue
 

hey mate, may I ask what electrical glitch did you have? How did you manage to fix it? Thanks!

I discovered it was a broken wire feed to the def pump in the adblue tank causing an intermittent fault. It was an easy fix in the end. I've since sold the car but now I'm left with a brand new adblue injector that was never used!