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Audi B9 S4 Quattro 3.0T

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Audi B9 S4 Quattro 3.0T Climate Control & HVAC Parts

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Charcoal Lined Cabin Air Filter

ES#3448685 - 4M0819439A - Charcoal Lined Cabin Air Filter - The activated charcoal filters odor from reaching the cabin - Hengst - Audi Porsche
ECS Tuning recommends this product.

The activated charcoal filters odor from reaching the cabin We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!

Brand:
Hengst - Corporate Logo
ES#:
3448685
Mfg#:
4M0819439A
In Stock
$24.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cabin Air Filter - Blue.care Bioactive

ES#4019211 - 4M0819439B - Cabin Air Filter - Blue.care Bioactive - Cleans the air for the climate control system before it enters the cabin - Hengst - Audi Porsche
ECS Tuning recommends this product.

Cleans the air for the climate control system before it enters the cabin We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!

Brand:
Hengst - Corporate Logo
ES#:
4019211
Mfg#:
4M0819439B
In Stock
$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Cabin Air Filter - Priced Each

ES#4829743 - 4M0819439C - Cabin Air Filter - Priced Each - Genuine Volkswagen Audi - Audi

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4829743
Mfg#:
4M0819439C
Ships on Aug 24, 2026
2% off MSRP

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

$57.99

This product was last offered at the strikethrough price on
08-23-2026

$56.99 USD
Free Shipping
on orders $49 and up

Cabin Air Filter - Priced Each

ES#4809677 - 4M0819439B - Cabin Air Filter - Priced Each - Filters odor from reaching the cabin - Mahle - Audi

Filters odor from reaching the cabin

Brand:
Mahle - Corporate Logo
ES#:
4809677
Mfg#:
4M0819439B
In Stock
$43.99

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

$36.99 USD
Free Shipping
on orders $49 and up

A/C Compressor

ES#4809611 - 8W0816803A - A/C Compressor - Keep your A/C blowing cold - Denso - Audi

Keep your A/C blowing cold

Brand:
Denso - Corporate Logo
ES#:
4809611
Mfg#:
8W0816803A
Ships in 1-2 days
$682.99

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

$663.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

A/C Condenser

ES#4494041 - 8W0816411R - A/C Condenser - Keep your A/C blowing cold - Genuine Volkswagen Audi - Audi

Keep your A/C blowing cold

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4494041
Mfg#:
8W0816411R
Ships in 2 Business Days
9% off MSRP

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

$598.99

This product was last offered at the strikethrough price on
08-23-2026

$547.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 Billet Aluminum Control Ring Kit - NOTCHED - Black Anodized Large MMI

ES#3638608 - 023770ECS08-02KT - Audi B9 Billet Aluminum Control Ring Kit - NOTCHED - Black Anodized Large MMI - Set of four billet aluminum trim rings for your climate control, MMI, and volume knobs. - ECS - Audi

Set of four billet aluminum trim rings for your climate control, MMI, and volume knobs.
For vehicles with touch sensitive MMI knob

Brand:
ECS - Corporate Logo
ES#:
3638608
Mfg#:
023770ECS08-02KT
In Stock
ON SALE! SAVE 25%
$126.99

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

$95.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

AFe POWER Carbon Cabin Air Filter

ES#5395961 - 35-10027C - AFe POWER Carbon Cabin Air Filter - Filters odor from reaching the cabin - AFE - Audi Porsche

Filters odor from reaching the cabin

Brand:
AFE - Corporate Logo
ES#:
5395961
Mfg#:
35-10027C
In Stock
21% off MSRP

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

$42.99

This product was last offered at the strikethrough price on
08-23-2026

$34.00 USD
Free Shipping
on orders $49 and up

HEATERCORE

ES#4757080 - 8B3820037A - HEATERCORE - Genuine Volkswagen Audi - Audi

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4757080
Mfg#:
8B3820037A
Ships in 1-2 days
8% off MSRP

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

$370.99

This product was last offered at the strikethrough price on
08-23-2026

$339.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Charcoal Lined Cabin Filter / Fresh Air Filter

ES#3464839 - 4M0819439A - Charcoal Lined Cabin Filter / Fresh Air Filter - The activated charcoal filters odor from reaching the cabin - Corteco - Audi Porsche

The activated charcoal filters odor from reaching the cabin

Brand:
Corteco - Corporate Logo
ES#:
3464839
Mfg#:
4M0819439A
Ships in 1-2 days
$74.21

This product was last offered at the strikethrough price on
04-03-2026

$57.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 Billet Aluminum Control Ring Kit - NOTCHED - Red Anodized Large MMI

ES#3638609 - 023770ECS08-03KT - Audi B9 Billet Aluminum Control Ring Kit - NOTCHED - Red Anodized Large MMI - Set of four billet aluminum trim rings for your climate control, MMI, and volume knobs. - ECS - Audi

Set of four billet aluminum trim rings for your climate control, MMI, and volume knobs.
For vehicles with touch sensitive MMI knob

Brand:
ECS - Corporate Logo
ES#:
3638609
Mfg#:
023770ECS08-03KT
In Stock
ON SALE! SAVE 25%
$129.99

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

$97.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 Billet Aluminum Control Ring Kit - NOTCHED - Red Anodized Small MMI

ES#3690756 - 023770ECS04-03KT - Audi B9 Billet Aluminum Control Ring Kit - NOTCHED - Red Anodized Small MMI - Set of four billet aluminum trim rings for your climate control, MMI, and volume knobs. - ECS - Audi

Set of four billet aluminum trim rings for your climate control, MMI, and volume knobs.
For vehicles without touch sensitive MMI knob

Brand:
ECS - Corporate Logo
ES#:
3690756
Mfg#:
023770ECS04-03KT
In Stock
ON SALE! SAVE 25%
$129.99

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

$97.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 Billet Aluminum Control Ring Kit - SMOOTH - Red Anodized Large MMI

ES#3638606 - 023770ECS07-03KT - Audi B9 Billet Aluminum Control Ring Kit - SMOOTH - Red Anodized Large MMI - Set of four billet aluminum trim rings for your climate control, MMI, and volume knobs. - ECS - Audi

Set of four billet aluminum trim rings for your climate control, MMI, and volume knobs.
For vehicles with touch sensitive MMI knob

Brand:
ECS - Corporate Logo
ES#:
3638606
Mfg#:
023770ECS07-03KT
In Stock
ON SALE! SAVE 25%
$126.99

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

$95.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 Billet Aluminum Control Ring Kit - SMOOTH - Black Anodized Large MMI

ES#3638605 - 023770ECS07-02KT - Audi B9 Billet Aluminum Control Ring Kit - SMOOTH - Black Anodized Large MMI - Set of four billet aluminum trim rings for your climate control, MMI, and volume knobs. - ECS - Audi

Set of four billet aluminum trim rings for your climate control, MMI, and volume knobs.
For vehicles with touch sensitive MMI knob

Brand:
ECS - Corporate Logo
ES#:
3638605
Mfg#:
023770ECS07-02KT
In Stock
ON SALE! SAVE 40%
$126.99

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

$76.19 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 Billet Aluminum Control Ring Kit - NOTCHED - Black Anodized Small MMI

ES#3690754 - 023770ECS04-02KT - Audi B9 Billet Aluminum Control Ring Kit - NOTCHED - Black Anodized Small MMI - Set of four billet aluminum trim rings for your climate control, MMI, and volume knobs. - ECS - Audi

Set of four billet aluminum trim rings for your climate control, MMI, and volume knobs.
For vehicles without touch sensitive MMI knob

Brand:
ECS - Corporate Logo
ES#:
3690754
Mfg#:
023770ECS04-02KT
In Stock
ON SALE! SAVE 25%
$129.99

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

$97.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 Billet Aluminum Control Ring Kit - SMOOTH - Red Anodized Small MMI

ES#3690753 - 023770ECS02-03KT - Audi B9 Billet Aluminum Control Ring Kit - SMOOTH - Red Anodized Small MMI - Set of four billet aluminum trim rings for your climate control, MMI, and volume knobs. - ECS - Audi

Set of four billet aluminum trim rings for your climate control, MMI, and volume knobs.
For vehicles without touch sensitive MMI knob

Brand:
ECS - Corporate Logo
ES#:
3690753
Mfg#:
023770ECS02-03KT
In Stock
ON SALE! SAVE 25%
$126.99

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

$95.24 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Climate Control & HVAC Parts

Stay warm in winter; cool in summer. Maintain and repair your HVAC system for year round comfort and safety.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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