1st off sorry for posting in the A6 section but it gets more hits than the A7 section and there the same engine and running gear anyway..
Right folks im after some advice i put a thread on here awhile ago about my A7 3 litre tdi and its strange water usage..
Mines a 2013 63 plate A7 245bhp
Basically its losing/using about 400/500ml of coolant every 300 miles i have monitored it over the last couple of months and its fairly constant with its coolant usage, it warms up fine no smoke gets to correct temp dosent over heat ( sat in traffic the digital temp may rise to about 102c but then drops back and holds @ mid 90's.
I had the water pump changed under warranty hoping it was that as the garage said it was failing, but its still using water. Its been pressure tested 3 times and holds correct pressure, theres no oil in the coolant reservoir no salad cream in the engine oil cap.
Its had a course of k-seal added still not had any effect, i've had the front bumper off and theres no radiator leaks that i can see, theres no leaks on the under tray or visable leaks on the engine or coolant pipes.
I've put a brand new coolant reservoir coolant cap on, still its using the coolant...so as you can guess im sratching my head big time now..
So after much digging on Google im wondering if my EGR cooler is starting to fail/leak theres no visable signs of leaks but i have taken a couple of screen shots of what i've read, has anybody had this issue or heard or had the EGR replaced on the newer 3 litre Tdi lumps????
Thank you.
Right folks im after some advice i put a thread on here awhile ago about my A7 3 litre tdi and its strange water usage..
Mines a 2013 63 plate A7 245bhp
Basically its losing/using about 400/500ml of coolant every 300 miles i have monitored it over the last couple of months and its fairly constant with its coolant usage, it warms up fine no smoke gets to correct temp dosent over heat ( sat in traffic the digital temp may rise to about 102c but then drops back and holds @ mid 90's.
I had the water pump changed under warranty hoping it was that as the garage said it was failing, but its still using water. Its been pressure tested 3 times and holds correct pressure, theres no oil in the coolant reservoir no salad cream in the engine oil cap.
Its had a course of k-seal added still not had any effect, i've had the front bumper off and theres no radiator leaks that i can see, theres no leaks on the under tray or visable leaks on the engine or coolant pipes.
I've put a brand new coolant reservoir coolant cap on, still its using the coolant...so as you can guess im sratching my head big time now..
So after much digging on Google im wondering if my EGR cooler is starting to fail/leak theres no visable signs of leaks but i have taken a couple of screen shots of what i've read, has anybody had this issue or heard or had the EGR replaced on the newer 3 litre Tdi lumps????
Thank you.
