How to remove and test a thermostat in a cooling system?

Drain the cooling system and remove the thermostat. Clean it and test in heated water. It should open at 84 'C for manual models, 50'C for automatic models, and close quickly in cold water. If it works, refit it, ensuring the clamp and arrow face the direction of travel. Clean the housing, refit the cover with a new gasket if needed, and tighten the bolts evenly. Refill and bleed the system.

Genuine BMW 2500 Thermostat

Engine Coolant Thermostat

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4 Thermostats found

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BMW 2500 Engine Coolant Thermostat
Part Number: 11531710953
$41.81 MSRP: $50.49
You Save: $8.68 (18%)

Add to Cart
Product Specifications
- Other Name: Thermostat
- Replaces: 11-53-1-466-174, 11-53-1-713-040
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
View More
Fits the following Vehicles:
- 1969-1970 BMW 2500
View related parts
BMW 2500 Engine Coolant Thermostat
Part Number: 11531251041
$54.86 MSRP: $61.70
You Save: $6.84 (12%)

Add to Cart
Product Specifications
- Other Name: Thermostat
- Replaces: 11-53-1-254-065
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
View More
Fits the following Vehicles:
- 1969-1970 BMW 2500
View related parts
BMW 2500 Thermostat
Part Number: 11531466174
$41.81 MSRP: $50.49
You Save: $8.68 (18%)

Add to Cart
Product Specifications
- Replaced by: 11531710953
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
View More
Fits the following Vehicles:
- 1969-1970 BMW 2500
View related parts
BMW 2500 Thermostat
Part Number: 11531254065
$54.86 MSRP: $61.70
You Save: $6.84 (12%)

Add to Cart
Product Specifications
- Replaced by: 11531251041
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
View More
Fits the following Vehicles:
- 1969-1970 BMW 2500

BMW 2500 Thermostat Parts Questions & Answers

Engine Coolant Thermostat
11-53-1-710-953
Q: How to remove and test a thermostat in a cooling system?
A: Drain the cooling system and remove the thermostat. Clean it and test in heated water. It should open at 84 'C for manual models, 50'C for automatic models, and close quickly in cold water. If it works, refit it, ensuring the clamp and arrow face the direction of travel. Clean the housing, refit the cover with a new gasket if needed, and tighten the bolts evenly. Refill and bleed the system.