vs
Thermostat OEM Audi or Duralast
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
I will say I went through several OEM stats and finally put a duralast in and it's been in now 5 years no problems.
Pros: no problems, 5 years reliability
Vehicle:
Toyota Sienna
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 use duralast on my last 3 vehicles no problem.
Pros: no problem
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'd advise taking that Duralast thermostat out and installing either an OEM unit or a unit from a trusted brand (such as Stant). If the Duralast gets stuck in a closed position, the SUV will overheat. If it gets stuck in an open position, the engine won't reach operating temp, and you'll have issues such as running rich. Duralast has a nickname we techs refer to: Duracrap or Dura-doesn't-last.
Cons: gets stuck, engine overheating, poor reliability
Vehicle:
Kia Sorento
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
Write your review
Help others - share your experience with this part.
Comparisons
Show all
Voted AGAINST engine oil RAVENOL on the rating page
The brake pads NIPPARTS got the first review!
The brake discs Hella got the first review!
The brake discs OEM Suzuki got the first review!
For tires OEM Toyota already 25 reviews.
For tires IRONMAN already 25 reviews.
For starter motor OEM Volkswagen already 25 reviews.
In the rating best ignition coil already 13 brands participate!
In the rating best fuel pump already 5 brands participate!
In the rating best turbocharger already 4 brands participate!
In the auto rating headlights for Volkswagen Golf already 5 brands participate!
In the auto rating brake pads for Mazda 5 already 10 brands participate!
In the auto rating brake pads for BMW M2 already 5 brands participate!
Voted AGAINST engine oil RED LINE on the rating page
Voted AGAINST engine oil PENNZOIL on the rating page
