1996 Audi A6 Coolant leakage

1996 AUDI A6
115,000 MILES • 6 CYL • AWD • AUTOMATIC
Avatar
SIDDIKOV
  • MEMBER
  • 5 POSTS
My car was leaking fluid under pressure from the pressurized extension reservoir cap. I replaced it and it was fine for couple of days. and than steam burst out under the hood; It started leaking again. it wouldn't hold a fluid. I found the leak: it was leaking from a valve looking peace on the coolant house on the rear wall right before house enters to the heater core. Picture is attached. ( I was not using the heater) What is the name of that peace? Will my problem would be solved after I replace that unit. Do I need to replace the thermostat? What controls the coolant flow to the heater?[img:7fce02d21b]http://www.2carpros.com/forum/automotive_pictures/519542_audi_part_1.jpg[/img:7fce02d21b]
[img:7fce02d21b]http://www.2carpros.com/forum/automotive_pictures/519542_audi2_1.jpg[/img:7fce02d21b]
[img:7fce02d21b]http://www.2carpros.com/forum/automotive_pictures/519542_audi3_1.jpg[/img:7fce02d21b]
Apr 28, 2010 at 9:04 PM
Advertisement
Avatar
2CARPRO JACK
  • ASE Certified Mechanic
  • 11,533 POSTS
  • ASE Certified Mechanic
If it is inline in the heater hose,it is most likely the heater control valve.Should have a vacuum line going to it, this allows hot water intot ehjheater core when you select hot on the temp panel.I would do the thermostat if it has overheated, they can get sticky after they have been real hot
Apr 29, 2010 at 10:16 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.