Owner reviews for thermostat

I use a Stant 205. No problems for me, and they're pretty well recommended.

I've had no problems with the stant line either

I get the NAPA gold ones. They're a reboxed stant superstat and I've never had that product line give me a dud.

Just so happens my clearance thermostat is a Motorad which has the VW/Audi p/n cast on the housing!

I always use Premium Thermostats, which are billed to fail open. Gates or Stant are my favorite brands.

Make sure you get an OEM thermostat from the dealer. These engines use a cold side thermostat. so if you get one from a parts store, it’ll be wrong and still run hot. It stays right at 190 now cruising on the highway empty. Before, it was always at 220.

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.

Aisin THF-003 thermostat was used (I believe this is what I'm regretting). It's like the thermostat isn't opening? Everything else seems fine - it's clearly getting hot. Little to no heat at idle. No circulation = overheating of the engine. Is the replacement thermostat stuck shut?

Installed a Motorad thermostat and noticed the temp gauge dropping on the highway. I never had this issue before I changed the tstat

Our 2022 CX-5 Premium Plus (non turbo) is going in for its 3rd thermostat replacement next week. Each time it’s been replaced at Mazda under warranty with an OEM part. Vehicle will hit 90,000 Miles this month. Does this thermostat wear seem excessive or is it normal for these? Bought brand new and it’s been the only problem, other then general maintenance