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Audi S4 Cooling System Refresh Kits

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Cooling System Refresh Kit - Level 2

ES#3648524 - n90316802ktKT - Cooling System Refresh Kit - Level 2 - Replace your thermostat, temp sensor, and expansion tank after performing a proper coolant system flush! - Genuine Volkswagen Audi - Audi

Replace your thermostat, temp sensor, and expansion tank after performing a proper coolant system flush! Up to production date 5/1/2011

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3648524
Mfg#:
N90316802KTKT
Ships in 1 day
$477.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 2

ES#3648526 - n90316802ktKT1 - Cooling System Refresh Kit - Level 2 - Replace your thermostat, temp sensor, and expansion tank after performing a proper coolant system flush! - Genuine Volkswagen Audi - Audi

Replace your thermostat, temp sensor, and expansion tank after performing a proper coolant system flush! From production date 5/2/2011

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3648526
Mfg#:
N90316802KTKT1
Ships in 1 day
$477.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 1

ES#3648520 - g013a8j1gkt22KT - Cooling System Refresh Kit - Level 1 - Replace your thermostat and temp sensor with one kit! - Genuine Volkswagen Audi - Audi

Replace your thermostat and temp sensor with one kit!

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
3648520
Mfg#:
G013A8J1GKT22KT
In Stock
$241.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 2

ES#2678366 - 06E121111ADKT3 - Cooling System Refresh Kit - Level 2 - Replace your thermostat, temp sensor, and expansion tank after performing a proper coolant system flush! - Assembled By ECS - Audi

Replace your thermostat, temp sensor, and expansion tank after performing a proper coolant system flush! 10X Entries Into Our F80 M3 Sweepstakes
From production date 5/2/2011

Brand:
Assembled By ECS - Corporate Logo
ES#:
2678366
Mfg#:
06E121111ADKT3
In Stock
ON SALE!
$218.99

This product was last offered at the strikethrough price on
05-02-2026

$206.89 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 2

ES#2678365 - 06E121111ADKT2 - Cooling System Refresh Kit - Level 2 - Replace your thermostat, temp sensor, and expansion tank after performing a proper coolant system flush! - Assembled By ECS - Audi

Replace your thermostat, temp sensor, and expansion tank after performing a proper coolant system flush! 10X Entries Into Our F80 M3 Sweepstakes
Up to production date 5/1/2011

Brand:
Assembled By ECS - Corporate Logo
ES#:
2678365
Mfg#:
06E121111ADKT2
In Stock
ON SALE!
$218.99

This product was last offered at the strikethrough price on
05-02-2026

$206.89 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 1

ES#2678364 - 06E121111ADKT - Cooling System Refresh Kit - Level 1 - Replace your thermostat and temp sensor with one kit! - Assembled By ECS - Audi
ECS Tuning recommends this product.

Replace your thermostat and temp sensor with one kit! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2678364
Mfg#:
06E121111ADKT
In Stock
ON SALE! SAVE 14%
$118.99

This product was last offered at the strikethrough price on
05-02-2026

$102.85 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 1

ES#2608209 - 078121113FKT - Cooling System Refresh Kit - Level 1 - Replace your thermostat and temp sensors with one kit! - Assembled By ECS - Audi

Replace your thermostat and temp sensors with one kit! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2608209
Mfg#:
078121113FKT
Ships in 2 Business Days
ON SALE!
$100.49 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 2

ES#4691027 - 8W1121405NKT - Cooling System Refresh Kit - Level 2 - Replace your thermostat, temp sensor, and expansion tank after performing a proper coolant system flush! - Genuine Volkswagen Audi - Audi

Replace your thermostat, temp sensor, and expansion tank after performing a proper coolant system flush!

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4691027
Mfg#:
8W1121405NKT
Ships in 1 day
$565.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 2

ES#4691355 - 8W1121405N1KT - Cooling System Refresh Kit - Level 2 - Replace your thermostat, temp sensor, and expansion tank after performing a proper coolant system flush! - Assembled By ECS - Audi

Replace your thermostat, temp sensor, and expansion tank after performing a proper coolant system flush! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
4691355
Mfg#:
8W1121405N1KT
Ships in 10 Business Days
$434.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit

ES#3677363 - 079121111jKT6 - Cooling System Refresh Kit - Service your critical cooling system components with this complete kit, with Genuine Coolant. - Assembled By ECS - Audi

Service your critical cooling system components with this complete kit, with Genuine Coolant. 10X Entries Into Our F80 M3 Sweepstakes
Includes thermostat with housing.

Brand:
Assembled By ECS - Corporate Logo
ES#:
3677363
Mfg#:
079121111JKT6
Ships on Oct 6, 2026
Auto Notify
$674.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - Level 2

ES#2796215 - 078121121KKT1 - Cooling System Refresh Kit - Level 2 - Replace critical cooling system components and perform a proper coolant system flush! - Assembled By ECS - Audi

Replace critical cooling system components and perform a proper coolant system flush! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2796215
Mfg#:
078121121KKT1
Ships on Dec 18, 2026
ON SALE!
$221.99

This product was last offered at the strikethrough price on
08-24-2026

$221.36 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

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