Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle

No Vehicle selected
Please select your vehicle below.

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle
Your Vehicle Please tap 'Select' to pick a vehicle
Select

Audi A4 Engine Emission Parts

Sort By
Filter By
Return to Top

Combi Valve / EGR Valve - Left

ES#2955509 - 078131101AG - Combi Valve / EGR Valve - Left - Keep your emissions in check - Genuine Volkswagen Audi - Audi Volkswagen

Keep your emissions in check Left side

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2955509
Mfg#:
078131101AG
Ships in 5 Business Days
7% off MSRP

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

$474.99

This product was last offered at the strikethrough price on
07-25-2026

$442.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

PCV Refresh Kit

ES#2215186 - 06C103217H - PCV Refresh Kit - Let your crankcase breath easy with this complete PCV refresh kit from ECS Tuning - Genuine Volkswagen Audi - Audi

Let your crankcase breath easy with this complete PCV refresh kit from ECS Tuning Up To VIN 8E-3-325000, split is in the 2003 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
2215186
Mfg#:
06C103217H
Ships in 8 Business Days
$757.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Breather Tube - Priced Each

ES#280184 - 06C103217H - Breather Tube - Priced Each - PCV hose set assembly, includes PCV valve - Genuine Volkswagen Audi - Audi

PCV hose set assembly, includes PCV valve Up to the 2003 model year

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
280184
Mfg#:
06C103217H
Ships in 8 Business 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.

$616.99

This product was last offered at the strikethrough price on
07-25-2026

$564.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Breather Hose Elbow

Connects the oil filter adapter to the hard breather tube 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
5460611
Mfg#:
06A103213AM
Ships on Aug 11, 2026
Auto Notify
ON SALE! SAVE 20%
$11.99

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

$9.59 USD
This product is lifetime replacement eligible Lifetime Replacement

PCV Breather Hose

Connects PCV to the intake manifold From the 2013 model year

Brand:
Gates - Corporate Logo
ES#:
3234836
Mfg#:
06J103221
Ships on Aug 13, 2026
$34.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Locking Gas Cap With Keys

Keep your fuel to yourself Model year 1996 to 1998

Brand:
Gates - Corporate Logo
ES#:
3235408
Mfg#:
191201551A
Ships on Aug 13, 2026
$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Breather Assembly Gasket

ES#5340871 - 048103771 - Breather Assembly Gasket - Seals the breather assembly to the engine - Elring - Audi

Seals the breather assembly to the engine 2X Entries For Our 25th Anniversary Sweepstakes!
Engine codes AEB & ATW

Brand:
Elring - Corporate Logo
ES#:
5340871
Mfg#:
048103771
Special Order: No Guaranteed ETA
$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Valley Pan Gasket (Vent Trim)

Located underneath the PVC vent box 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Elring - Corporate Logo
ES#:
5340931
Mfg#:
06C103771
Special Order: No Guaranteed ETA
$9.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV)

Located beneath the intake manifold. 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Elring - Corporate Logo
ES#:
5340483
Mfg#:
06E103547P
Special Order: No Guaranteed ETA
$166.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Crimp Clamp - Priced Each

ES#2872946 - N10202001 - Crimp Clamp - Priced Each - Install new hardware with your new parts. 24.1x7x0.6 - Febi - Audi Volkswagen

Install new hardware with your new parts. 24.1x7x0.6 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2872946
Mfg#:
N10202001
Special Order: No Guaranteed ETA
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lambda Sensor

ES#2865692 - 030906262D - Lambda Sensor - Febi - Audi Volkswagen

2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2865692
Mfg#:
030906262D
Special Order: No Guaranteed ETA
$131.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Solenoid Valve - Priced Each

Direct OE replacement 2-pin switch valve to cure vacuum leaks, SAI faults, or intake runner codes (commonly used as N112, N156, or N249 valves). 2X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Febi - Corporate Logo
ES#:
5492271
Mfg#:
037906283C
Special Order: No Guaranteed ETA
$36.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator/PCV Valve

Direct OE replacement crankcase breather to cure rough idle, oil consumption, and whistling noises on your 1.8T or 2.0T EA888 Gen3. 2X Entries For Our 25th Anniversary Sweepstakes!
For vehicles with CYMC engine code only

Brand:
Febi - Corporate Logo
ES#:
5492241
Mfg#:
06K103495BL
Special Order: No Guaranteed ETA
$54.99 USD

Complete PCV / Oil Breather Kit

Eliminate massive vacuum leaks and restore smooth idle with this comprehensive crankcase ventilation kit from Febi Bilstein. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Fits up to production date 3/31/2012 - Please check existing part number before ordering

Brand:
Febi - Corporate Logo
ES#:
4342718
Mfg#:
06H103495ACS3
Special Order: No Guaranteed ETA
$115.99

This product was last offered at the strikethrough price on
07-20-2026

$99.99 USD
This product is lifetime replacement eligible Lifetime Replacement

PCV With Ventilation Hoses

Cure your rough idle, whistling engine, and oil consumption issues with this complete crankcase ventilation kit from Febi Bilstein. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Fits up to production date 3/31/2012 - Please check existing part number before ordering

Brand:
Febi - Corporate Logo
ES#:
4342717
Mfg#:
06H103495ACS1
Special Order: No Guaranteed ETA
$116.99

This product was last offered at the strikethrough price on
07-20-2026

$99.99 USD
This product is lifetime replacement eligible Lifetime Replacement

PCV With Gasket

Cure your rough idle, whistling engine, and oil consumption issues with this OE-quality PCV valve replacement from Febi Bilstein. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
Fits up to production date 3/31/2012 - Please check existing part number before ordering

Brand:
Febi - Corporate Logo
ES#:
4342716
Mfg#:
06H103484AS1
Special Order: No Guaranteed ETA
$73.99

This product was last offered at the strikethrough price on
07-20-2026

$62.99 USD
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Emission Parts

Repairing failed emission components doesn't just turn off the check engine light so you can pass your local emissions test, it also improves performance and fuel economy. ECS stocks all common emission controls, from oxygen sensors to PCV valves.

Let us help you find the parts that fit your Audi

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

Terms of Use Privacy Policy ECS Tuning is part of Enthusiast Auto Holdings