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Audi A4 Cooling System Service & Maintenance Parts

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Coolant Flange Replacement Kit

ES#4017762 - CHS0645 - Coolant Flange Replacement Kit - A comprehensive kit designed to service the commonly failing cooling system components in a single repair. - Rein - Audi Volkswagen

A comprehensive kit designed to service the commonly failing cooling system components in a single repair. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For vehicles with AEB & ATW engine codes with D-shaped coolant temp sensor

Brand:
Rein - Corporate Logo
ES#:
4017762
Mfg#:
CHS0645
In Stock
$56.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Flange Replacement Kit

ES#4789435 - 06d121132ckt8KT - Coolant Flange Replacement Kit - A comprehensive kit designed to service the commonly failing cooling system components in a single repair. - Assembled By ECS - Audi

A comprehensive kit designed to service the commonly failing cooling system components in a single repair. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4789435
Mfg#:
06D121132CKT8KT
In Stock
ON SALE! SAVE 12%
$142.99

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

$126.51 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling System Refresh Kit - level 2

ES#4220580 - 06H121026BAKT6 - Cooling System Refresh Kit - level 2 - This comprehensive kit eliminates weak spots in your cooling system - Assembled By ECS - Audi

This comprehensive kit eliminates weak spots in your cooling system 10X Entries For Our 25th Anniversary Sweepstakes!
Automatic transmission vehicles only

Brand:
Assembled By ECS - Corporate Logo
ES#:
4220580
Mfg#:
06H121026BAKT6
In Stock
ON SALE!
$561.99

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

$530.49 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Radiator Relief Flush

ES#2608077 - 040202 - Radiator Relief Flush - Concentrated cleansing agent that effectively cleans your cooling system! - DEI - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Concentrated cleansing agent that effectively cleans your cooling system!

Brand:
DEI - Corporate Logo
ES#:
2608077
Mfg#:
040202
In Stock
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Radiator Stop-Leak - 250mL

ES#3514566 - 20132 - Radiator Stop-Leak - 250mL - Put a stop to that coolant leak! - Liqui-Moly - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Put a stop to that coolant leak! 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
3514566
Mfg#:
20132
In Stock
29% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$16.99

This product was last offered at the strikethrough price on
08-14-2026

$11.99 USD
Free Shipping
on orders $49 and up

Audi B7 2.0T Cast Cooling Flange Replacement Kit

ES#4659383 - 06D121132CKT5 - Audi B7 2.0T Cast Cooling Flange Replacement Kit - Cure the common coolant leak coming from the back of your engine compartment once and for all! - Assembled By ECS - Audi

Cure the common coolant leak coming from the back of your engine compartment once and for all! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
4659383
Mfg#:
06D121132CKT5
In Stock
$105.99

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

$55.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Cooling System Refresh Kit - level 1

ES#2847693 - 06H121026BAKT2 - Cooling System Refresh Kit - level 1 - Service your critical cooling system components with one kit! - Assembled By ECS - Audi

Service your critical cooling system components with one kit! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2847693
Mfg#:
06H121026BAKT2
In Stock
ON SALE! SAVE 19%
$306.99

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

$247.72 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Mishimoto Liquid Chill Radiator Coolant Additive - 4oz

ES#2764643 - MMRALC - Mishimoto Liquid Chill Radiator Coolant Additive - 4oz - Pairs with all types of coolant to increase heat transfer and decrease engine temps. - Mishimoto - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Pairs with all types of coolant to increase heat transfer and decrease engine temps.

Brand:
Mishimoto - Corporate Logo
ES#:
2764643
Mfg#:
MMRALC
Ships in 3 Business Days
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lock Carrier Tool - M10

ES#4492729 - 01598SCH01 - Lock Carrier Tool - M10 - Extended lock carrier bolt to make extra room without removing the entire front end. - Schwaben - Audi Volkswagen

Extended lock carrier bolt to make extra room without removing the entire front end. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Schwaben - Corporate Logo
ES#:
4492729
Mfg#:
01598SCH01
In Stock
ON SALE! SAVE 25%
$10.99

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

$8.21 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cooling Flange Replacement Kit

ES#2770993 - 06D121132Ckt1 - Cooling Flange Replacement Kit - Cure the common coolant leak coming from the back of your engine compartment - Genuine Volkswagen Audi - Audi

Cure the common coolant leak coming from the back of your engine compartment

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2770993
Mfg#:
06D121132CKT1
Ships in 1-2 days
$113.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

G13 Coolant / Antifreeze - 5 Liter

ES#2872898 - G013A8JM1S1 - G13 Coolant / Antifreeze - 5 Liter - Lilac OE VW/Audi specification concentrate lifetime coolant - Febi - Audi Volkswagen

Lilac OE VW/Audi specification concentrate lifetime coolant 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2872898
Mfg#:
G013A8JM1S1
In Stock at Vendor
$76.99

This product was last offered at the strikethrough price on
05-07-2026

$74.99 USD
Free Shipping
on orders $49 and up

Cooling System Refresh Kit - Level 1

ES#2765514 - 06D121111GKT4 - Cooling System Refresh Kit - Level 1 - Replace your thermostat and temp sensors with one kit! - Genuine Volkswagen Audi - Audi

Replace your thermostat and temp sensors with one kit!

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2765514
Mfg#:
06D121111GKT4
In Stock
$211.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Purple Ice - 12oz

ES#2793046 - 01600 - Purple Ice - 12oz - High performance coolant conditioner - Royal Purple - Audi BMW Volkswagen Mercedes Benz MINI Porsche

High performance coolant conditioner

Brand:
Royal Purple - Corporate Logo
ES#:
2793046
Mfg#:
01600
Ships in 4 Business Days
$12.99 USD
Free Shipping
on orders $49 and up

Cooling System Refresh Kit - Level 3

ES#3648516 - 06D121132CKT4 - Cooling System Refresh Kit - Level 3 - 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 For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3648516
Mfg#:
06D121132CKT4
Ships in 1-2 days
ON SALE!
$385.99

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

$350.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

More About Cooling System Service & Maintenance Parts

From individual cooling system parts to full cooling system refresh kits and cooling system upgrades, we have it all right here so you can keep your engine temperature in check or improve cooling system performance to meet the demands you place on your car.

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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