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Audi A4 Engine Service & Maintenance Parts

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Coolant Flange Replacement Kit

ES#4023737 - CHS0648 - Coolant Flange Replacement Kit - A comprehensive kit designed to service the commonly failing cooling system components in a single repair. - Rein - Audi

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!

Brand:
Rein - Corporate Logo
ES#:
4023737
Mfg#:
CHS0648
In Stock
$225.99

This product was last offered at the strikethrough price on
07-17-2026

$165.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Ignition Service Tools

ES#2999145 - ic-03KT - Ignition Service Tools - Remove ignition coils and spark plugs without damaging them - Schwaben - Audi Volkswagen
ECS Tuning recommends this product.

Remove ignition coils and spark plugs without damaging them 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Schwaben - Corporate Logo
ES#:
2999145
Mfg#:
IC-03KT
In Stock
ON SALE! SAVE 22%
$55.99

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

$43.48 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Accessory Belt Kit

ES#3648475 - 06l903133d2KT - Accessory Belt Kit - Keep your drive belt tight with a new belt, tensioner, and hardware - Assembled By ECS - Audi Volkswagen

Keep your drive belt tight with a new belt, tensioner, and hardware 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3648475
Mfg#:
06L903133D2KT
In Stock
ON SALE! SAVE 32%
$78.99

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

$53.46 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Ignition Service Kit - With Service Tools

ES#4349872 - ms100192kt3ktKT1 - Performance Ignition Service Kit - With Service Tools - Features APR Upgraded Ignition Coils and Brisk Silver Racing ER12s plugs, ensuring a stronger and more consistent spark! - Assembled By ECS - Audi Volkswagen

Features APR Upgraded Ignition Coils and Brisk Silver Racing ER12s plugs, ensuring a stronger and more consistent spark! 10X Entries For Our 25th Anniversary Sweepstakes!
CARB certified for sale in all 50 states

Brand:
Assembled By ECS - Corporate Logo
ES#:
4349872
Mfg#:
MS100192KT3KTKT1
EO#:
D-783-5
In Stock
ON SALE!
$367.99

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

$366.88 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit With ECS Billet Aluminum J-Plug

ES#2777024 - 06B121111KKT3 - Thermostat Replacement Kit With ECS Billet Aluminum J-Plug - Includes ECS' upgraded J-Plug, a new thermostat, o-ring, and hardware - Assembled By ECS - Audi

Includes ECS' upgraded J-Plug, a new thermostat, o-ring, and hardware 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2777024
Mfg#:
06B121111KKT3
In Stock
ON SALE! SAVE 24%
$159.99

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

$122.20 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Hydraulic Lifter Additive - 300mL

ES#3514558 - 20004 - Hydraulic Lifter Additive - 300mL - Quiet down that lifter tick! - Liqui-Moly - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Quiet down that lifter tick! 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
3514558
Mfg#:
20004
In Stock
43% off MSRP

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

$19.99

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

$11.39 USD
Free Shipping
on orders $49 and up

G12+ Coolant - 1.5 Liter

ES#550 - AF G001200 - G12+ Coolant - 1.5 Liter - Pink Pentosin SF Pentofrost coolant new updated G12 plus formula - Pentosin - Audi Volkswagen Porsche

Pink Pentosin SF Pentofrost coolant new updated G12 plus formula

Brand:
Pentosin - Corporate Logo
ES#:
550
Mfg#:
AF G001200
In Stock
$25.27 USD
Free Shipping
on orders $49 and up

Pento High Performance 5W-30 - 5 Liter

ES#4351737 - 8043206 - Pento High Performance 5W-30 - 5 Liter - One of the world's best all around synthetic engine oils - Pentosin - Audi BMW Volkswagen Mercedes Benz MINI

One of the world's best all around synthetic engine oils

Brand:
Pentosin - Corporate Logo
ES#:
4351737
Mfg#:
8043206
In Stock
$64.99 USD
Free Shipping
on orders $49 and up

ECS Cast Aluminum Coolant Flange Upgrade Kit

ES#4753366 - 06d121132C-KT - ECS Cast Aluminum Coolant Flange Upgrade Kit - A comprehensive kit designed to service the commonly failing cooling system components in a single repair. Includes heavy duty cast aluminum coolant flange. - ECS - Audi

A comprehensive kit designed to service the commonly failing cooling system components in a single repair. Includes heavy duty cast aluminum coolant flange. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4753366
Mfg#:
06D121132C-KT
Back Ordered
ON SALE! SAVE 39%
$223.99

This product was last offered at the strikethrough price on
06-13-2026

$136.57 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Performance Kevlar Reinforced Accessory Belt

ES#4661028 - 6PK1130 - Performance Kevlar Reinforced Accessory Belt - Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. - ECS - Audi Volkswagen
ECS Tuning recommends this product.

Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4661028
Mfg#:
6PK1130
Back Ordered
Auto Notify
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

APR Iridium Pro Spark Plug - Priced Each

ES#4616175 - Z1003101 - APR Iridium Pro Spark Plug - Priced Each - An excellent upgrade for tuned engines. 14X19X16mm - Heat Range 9 - APR - Audi Volkswagen Porsche

An excellent upgrade for tuned engines. 14X19X16mm - Heat Range 9 Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
APR - Corporate Logo
ES#:
4616175
Mfg#:
Z1003101
In Stock
ON SALE! SAVE 10%
$21.95

This product was last offered at the strikethrough price on
07-31-2026

$19.76 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Timing Belt Kit - Ultimate

ES#3960 - B6A4UTBKEV - Timing Belt Kit - Ultimate - Everything you need for a complete timing belt job on your 1.8T. Buy it all together & save. - Assembled By ECS - Audi

Everything you need for a complete timing belt job on your 1.8T. Buy it all together & save. 10X Entries For Our 25th Anniversary Sweepstakes!
Up to VIN 8E-4-191000, split is in the 2004 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
3960
Mfg#:
B6A4UTBKEV
In Stock
ON SALE!
$226.99

This product was last offered at the strikethrough price on
04-08-2026

$214.55 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Performance Ignition Coils - Set Of Four

ES#5338625 - 056059la08-4KT - ECS Performance Ignition Coils - Set Of Four - Designed to be a direct plug-and-play upgrade to factory coils, providing greater energy output, ensuring a stronger and more consistent spark! - ECS - Audi Volkswagen

Designed to be a direct plug-and-play upgrade to factory coils, providing greater energy output, ensuring a stronger and more consistent spark! 10X Entries For Our 25th Anniversary Sweepstakes!
For Vehicles with Engine Codes ATW and AEB (Bolt-In Style Ignition Coils)

Brand:
ECS - Corporate Logo
ES#:
5338625
Mfg#:
056059LA08-4KT
In Stock
ON SALE! SAVE 15%
$143.99

This product was last offered at the strikethrough price on
06-13-2026

$122.37 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Emissions Service Kit

ES#2723967 - 06H103495EKT2 - Emissions Service Kit - Everything you need to replace a faulty PCV valve - Assembled By ECS - Audi

Everything you need to replace a faulty PCV valve 10X Entries For Our 25th Anniversary Sweepstakes!
Up to the 2012 model year

Brand:
Assembled By ECS - Corporate Logo
ES#:
2723967
Mfg#:
06H103495EKT2
In Stock
ON SALE! SAVE 22%
$178.36

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

$139.66 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Speed Tec Gasoline Fuel Additive - 250mL

ES#4265328 - 20234KT - Speed Tec Gasoline Fuel Additive - 250mL - Improve combustion and acceleration with this simple additive! - Liqui-Moly - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Improve combustion and acceleration with this simple additive! 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat! This item is classified as Hazardous Materials and requires special shipping and handling. We cannot ship

Brand:
Liqui-Moly - Corporate Logo
ES#:
4265328
Mfg#:
20234KT
In Stock
$11.99

This product was last offered at the strikethrough price on
02-26-2026

$10.99 USD
Free Shipping
on orders $49 and up

More About Engine Service & Maintenance Parts

An ounce of prevention improves engine reliability and heads off big-ticket repairs. On average, the modest cost or periodic maintenance pays handsome rewards. Plan now to put your car on a regular schedule that includes fluid and filter changes, inspections, and recommended service.

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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