How to replace the thermostat?


Asked by Mar 16, 2016 at 06:53 PM about the 2006 Mazda MX-5 Miata Sport

Question type: Maintenance & Repair

1 Answer


Next to the belt pulleys you'll find a housing with a radiator hose clamped to it. Disconnect the hose and remove the bolts holding the housing to the engine. Make sure you drain the coolant first to avoid making a mess. The thermostat should come out with the housing. Make sure the gasket/O-ring is completely removed with it. Clean the surfaces to make sure they go back together nicely. Reverse the process to reinstall, making sure to properly place o-ring or gasket, purge all the air from cooling system by removing the radiator cap, starting the car and turning the heat all the way up to it's highest and hottest setting. Use the defogger so it comes out the vents under the windshield. Watch the radiator fill for bubbles while checking for heat and watching the temp gauge. This process can take up to 30 mins so be patient. Once you're getting hot heat and the bubbles are done, refill coolant and put the radiator cap back on and you should be good to go.

Your Answer

Add photo

Related Questions

Search Mazda MX-5 Miata Questions

Mazda MX-5 Miata Experts

#1 Michael Kane
Michael Kane
Reputation 1,840
#2 Tom Demyan
Tom Demyan
Reputation 1,060
#3 Racer_X
Reputation 380
View All

Related Models For Sale

Used Ford Mustang"
770 Great Deals out of 41,446 listings starting at $900
Used Honda S2000"
29 Great Deals out of 385 listings starting at $8,495
Used Nissan 350Z"
97 Great Deals out of 1,576 listings starting at $2,895
Used BMW 3 Series"
1,684 Great Deals out of 39,943 listings starting at $1,500
Used Chevrolet Corvette"
441 Great Deals out of 20,303 listings starting at $3,688
Used Mazda MAZDASPEED MX-5 Miata"
23 listings starting at $6,900
Used BMW Z4"
78 Great Deals out of 1,566 listings starting at $3,995
Used Mazda RX-8"
23 Great Deals out of 492 listings starting at $990
Used Honda Civic"
1,255 Great Deals out of 58,590 listings starting at $1,295
Used Porsche Boxster"
75 Great Deals out of 1,538 listings starting at $4,800
Used Mazda MAZDA3"
498 Great Deals out of 24,995 listings starting at $1,788

Used Cars For Sale

2016 Mazda MX-5 Miata For Sale
7 Great Deals out of 3,218 listings starting at $20,650
2015 Mazda MX-5 Miata For Sale
18 Great Deals out of 205 listings starting at $15,995
2014 Mazda MX-5 Miata For Sale
10 Great Deals out of 99 listings starting at $16,404
2013 Mazda MX-5 Miata For Sale
9 Great Deals out of 159 listings starting at $13,883
2012 Mazda MX-5 Miata For Sale
8 Great Deals out of 111 listings starting at $10,995