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Popular Topics This Week

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  1. Hi, I will be picking up a new A3 Sportback 2.0 Quattro this week. And I was wondering if anyone has any recommendations on how to run in the engine? Any contributions would be appreciated.
  2. Hello everyone, I have a 2010 Audi A4 B8 2.0 TDI CAHA (170 HP, remapped, approximately 315,000 km) Main symptoms: - Unexplained coolant loss: The car keeps losing coolant, especially after longer drives or harder acceleration - Excessive pressure: The cooling system seems to build up significant pressure, and I suspect coolant is escaping somewhere under pressure, particularly when the engine is under heavy load. - Coolant spraying under load: When driving harder, coolant appears to spray around the engine bay, making it almost impossible to locate the original leak. The area underneath and to the left of the expansion tank, along with surrounding components, becomes wet. - Cabin heating issue: After idling for a while, the heater starts blowing cold air. As soon as I increase the engine RPM, it starts blowing hot air again. - Possible trapped air: I've tried bleeding the cooling system several times, but I'm not sure whether all the air has been removed. Previous repairs and inspections: I've already visited several mechanics regarding this issue, but unfortunately, the exact cause still hasn't been identified. I'm currently waiting for another appointment with a mechanic. In the meantime, I'd really like to investigate the problem myself, understand what's causing it, and hopefully narrow down the possible causes. What's been done: - Recently completed a full major service (timing belt service), including the timing belt, tensioner, idler rollers, water pump and associated components. - Thermostat replaced (October 2026). - Expansion tank cap replaced - EGR and DPF deleted, EGR cooler coolant hoses bypassed. Has anyone experienced similar issues with the 2.0 TDI CAHA engine? Any suggestions on what I should check or test first would be greatly appreciated. Thank you!
  3. Interesting thankyou Peteb, I too have looked at that product and will give it a go to try and get an "in car" phone calling system working again. Appreciate the feedback. I'll post later how I get on.👍
  4. Thanks. I've got a carista so will do it tomorrow. Also I have posted this in the wrong sub which is why I reported it and copied it to 8v.
  5. Topic locked because it duplicates another.

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