vs
Thermostat OEM Audi or Motorcraft
Reviews
Make sure you use the motorcraft thermostat.
Pros: highly recommended
Go with the Motorcraft thermostat as it has a rubber seal on the outside edge.
Pros: has rubber seal
Not the water pump but I just had my thermostat replaced under the extended warranty. I was slowly losing coolant with no discernable leak.
Pros: fully covered, extended warranty
Cons: slowly losing coolant
I just got this done and Audi quoted me $2500 for just the thermostat. Mine was covered by the extended warranty Audi has on all water pumps leaks.
Pros: covered by warranty
Cons: expensive repair
Vehicle:
Audi A3
the 80c has been running flawless. Only difference is that my coolant stays at 83-94c. It used to get as high as 100 sometimes. Also the 80c part was recommended oe part #
Pros: running flawless, lower coolant temperature
Vehicle:
Audi TT
Part number: 050-121-113-B
Been running the 80 for a month or so. It works great. Car and Temps run flawlessly. Only difference is my average warmed up Temps are 85c. Used to be 95c
Pros: works great, runs flawlessly
Vehicle:
Audi TT
Part number: 050-121-113-B
I finally got around to installing a new thermostat/o-ring/housing and coolant reservoir/cap yesterday. When removing the thermostat, I noticed that the bottom bolt was VERY loose... I had done the thermostat without housing about a year ago now, had never leaked coolant before... My best guess is that I just didn't torque it enough and it slowly loosened, but only when cold (just a guess, but would help explain why no drips when car was running on ramps) and in small enough amounts that I did not notice a puddle on the ground.
Pros: issue resolved, no coolant loss
Cons: bottom bolt was loose
Vehicle:
Audi TT
My Q5 with 75,000 miles on it developed a leak in the water pump area. Initially Audi denied there was a leak, so I took pictures and showed it to them. Then they diagnosed it with thermostat leak.
Pros: warranty on that part
Cons: leak in water pump
Vehicle:
Audi Q5
Mileage: 75000 km
I replaced the thermostat from a non-OEM to Motorcraft about a month ago, and the only difference has been the speed at which the dial moves from higher temps to its normal positon.
Pros: faster dial movement
Vehicle:
Ford Ranger
The current plastic thermostat looks a little more beefy, but is still shatty plastic. They're commonly failing at 30-55k miles in the stuck closed position, instant overheat.
Pros: more beefy look
Cons: shatty plastic, instant overheat
Vehicle:
Audi A6
Mileage: 55000 km
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