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Audi A3 Engine Coolant Flanges & Parts

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Thermostat

ES#4900543 - 03L121111AC - Thermostat - This also includes the thermostat housing - Meyle - Audi Volkswagen

This also includes the thermostat housing 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4900543
Mfg#:
03L121111AC
Ships on Sep 23, 2026
$55.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

Includes housing and gasket 5X Entries Into Our F80 M3 Sweepstakes

Brand:
Meyle - Corporate Logo
ES#:
5483075
Mfg#:
06L121111N
Ships on Sep 23, 2026
$472.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring

Ensure a proper seal when installing your new thermostat. 50x3.5mm 2X Entries Into Our F80 M3 Sweepstakes
For vehicles with FSI engines only

Brand:
Elring - Corporate Logo
ES#:
5340952
Mfg#:
06B121119B
Special Order: No Guaranteed ETA
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat O-Ring

Ensure a proper seal when installing your new thermostat 2X Entries Into Our F80 M3 Sweepstakes

Brand:
Elring - Corporate Logo
ES#:
5340689
Mfg#:
N90136802
Special Order: No Guaranteed ETA
$1.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cylinder Head Cooling Flange

Common area for coolant leaks - Located on cylinder head 10X Entries Into Our F80 M3 Sweepstakes
For vehicles with FSI engines only

Brand:
Bremmen Parts - Corporate Logo
ES#:
5470357
Mfg#:
06F121132H
Ships on Nov 23, 2026
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ON SALE! SAVE 20%
$42.99

This product was last offered at the strikethrough price on
05-29-2026

$34.39 USD
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit

ES#5492870 - 06F121132H - Cooling System Refresh Kit - Plastic coolant flange to cure the infamous rear cylinder head coolant leak, resolve mysterious low-coolant warnings, and keep your VAG 2.0T running at the perfect temperature. - Febi - Audi Volkswagen

Plastic coolant flange to cure the infamous rear cylinder head coolant leak, resolve mysterious low-coolant warnings, and keep your VAG 2.0T running at the perfect temperature. For vehicles with FSI engines only

Brand:
Febi - Corporate Logo
ES#:
5492870
Mfg#:
06F121132H
Special Order: No Guaranteed ETA
$30.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Thermostat

ES#4872599 - 03L121111AM - Thermostat - This also includes the thermostat housing - Vemo - Audi Volkswagen

This also includes the thermostat housing

Brand:
Vemo - Corporate Logo
ES#:
4872599
Mfg#:
03L121111AM
Special Order: No Guaranteed ETA
$42.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Coolant Flanges & Parts

Replace a cracked or failed coolant flange with a brand new coolant flange to stop those leaks!

Let us help you find the parts that fit your Audi

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Manufacturer names and/or part numbers are used only for identification purposes.

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