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Audi C5 A6 Quattro 2.7T

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Audi C5 A6 Quattro 2.7T Engine Emission Parts

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Secondary Air Injection Pipe

ES#3130042 - 078131831L - Secondary Air Injection Pipe - Feeds air from the pump to both EGR/Combi valves - Vaico - Audi

Feeds air from the pump to both EGR/Combi valves We Price Match - Give Us A Call or Chat!
From the 2001 model year

Brand:
Vaico - Corporate Logo
ES#:
3130042
Mfg#:
078131831L
Ships in 1 Business Day
$168.99

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

$163.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Valve Control Solenoid (N249)

ES#3189517 - 667-106 - Valve Control Solenoid (N249) - Valve used to control combi valve operation - Dorman - Audi Volkswagen

Valve used to control combi valve operation

Brand:
Dorman - Corporate Logo
ES#:
3189517
Mfg#:
667-106
Ships in 4 Business Days
$156.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

EGR Valve - Left

Also known as the 'combi valve' Up to the 2000 model year

Brand:
Pierburg - Corporate Logo
ES#:
2576207
Mfg#:
078131101M
Ships in 1-2 days
51% off MSRP

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

$283.10

This product was last offered at the strikethrough price on
09-06-2026

$137.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Leak Detection Pump Filter

ES#4864897 - 8D0906321 - Leak Detection Pump Filter - Cleans the air entering the leak detection pump - Vaico - Audi Volkswagen

Cleans the air entering the leak detection pump We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
4864897
Mfg#:
8D0906321
Ships in 1-2 days
$65.99

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

$45.99 USD
Free Shipping
on orders $49 and up

EGR Valve - Right

ES#2142829 - 078131102M - EGR Valve - Right - Also known as the 'combi valve' - Original Equipment Supplier - Audi

Also known as the 'combi valve'

Brand:
Original Equipment Supplier - Corporate Logo
ES#:
2142829
Mfg#:
078131102M
Back Ordered
$122.99

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

$118.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV)

ES#2535976 - 077103245B - Pressure Control Valve (PCV) - Also called the "breather valve" or "oil separator" - Vaico - Audi Volkswagen

Also called the "breather valve" or "oil separator" We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2535976
Mfg#:
077103245B
Ships on Dec 31, 2026
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

EGR Valve Gasket - Priced Each

ES#283692 - 078131120K - EGR Valve Gasket - Priced Each - Ensure a proper seal - Genuine Volkswagen Audi - Audi Volkswagen

Ensure a proper seal

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
283692
Mfg#:
078131120K
Ships in 1-2 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.

$14.99

This product was last offered at the strikethrough price on
09-06-2026

$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Breather Valve Boot

ES#272959 - 034103247G - Breather Valve Boot - Connects the PCV assembly to the suction pump hose - Genuine Volkswagen Audi - Audi

Connects the PCV assembly to the suction pump hose

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
272959
Mfg#:
034103247G
Ships in 7 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.

$96.99

This product was last offered at the strikethrough price on
08-31-2026

$87.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Priced Each

ES#2894981 - 078906265N - Oxygen Sensor - Priced Each - Keep your engine running efficiently - Vemo - Audi Volkswagen

Keep your engine running efficiently Up to the 2001 model year

Brand:
Vemo - Corporate Logo
ES#:
2894981
Mfg#:
078906265N
Special Order: No Guaranteed ETA
$83.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV)

ES#2535190 - 077103245B - Pressure Control Valve (PCV) - Also called the "breather valve" or "oil separator" - URO - Audi Volkswagen

Also called the "breather valve" or "oil separator" 2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2535190
Mfg#:
077103245B
In Stock
ON SALE! SAVE 16%
$24.99

This product was last offered at the strikethrough price on
05-27-2026

$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal Oxygen Sensor Bung - Priced Each

ES#5051 - ATP-FLS-022 - Universal Oxygen Sensor Bung - Priced Each - Stainless steel weld-in nut for any O2 sensor - ATP - Audi BMW Volkswagen

Stainless steel weld-in nut for any O2 sensor

Brand:
ATP - Corporate Logo
ES#:
5051
Mfg#:
ATP-FLS-022
Ships in 6 Business Days
$12.95 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Catch Can Mounting Bracket (straight)

ES#3479288 - IEDIYUU1-7 - Catch Can Mounting Bracket (straight) - To make your custom install as easy as possible, IE offers stainless steel catch can mounting brackets - Integrated Engineering - Audi Volkswagen

To make your custom install as easy as possible, IE offers stainless steel catch can mounting brackets

Brand:
Integrated Engineering - Corporate Logo
ES#:
3479288
Mfg#:
IEDIYUU1-7
Back Ordered
Auto Notify
ON SALE! SAVE 10%
$9.99

This product was last offered at the strikethrough price on
09-02-2026

$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Dual Drive Oxygen Sensor Wrench

ES#2944218 - LIS12390 - Dual Drive Oxygen Sensor Wrench - Tool comes with both 1/2" and 3/8" drive. - Lisle - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Tool comes with both 1/2" and 3/8" drive.

Brand:
Lisle - Corporate Logo
ES#:
2944218
Mfg#:
LIS12390
Ships in 6 Business Days
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor Wrench 3/8" drive

ES#2949705 - SLY88750B - Oxygen Sensor Wrench 3/8" drive - O2 Sensor Socket - Schley - Audi Volkswagen Mercedes Benz MINI

O2 Sensor Socket

Brand:
Schley - Corporate Logo
ES#:
2949705
Mfg#:
SLY88750B
Ships on Sep 23, 2026
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pressure Control Valve (PCV)

ES#2749261 - 06C103245 - Pressure Control Valve (PCV) - Keep your engine running correctly - Vaico - Audi

Keep your engine running correctly We Price Match - Give Us A Call or Chat!

Brand:
Vaico - Corporate Logo
ES#:
2749261
Mfg#:
06C103245
Ships in 1-2 days
$59.99

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

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

Hose Clamp - Priced Each

ES#469749 - N90409501 - Hose Clamp - Priced Each - Install new clamps to stay leak free. 28.6x7x.6mm - Genuine Volkswagen Audi - Audi Volkswagen

Install new clamps to stay leak free. 28.6x7x.6mm

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
469749
Mfg#:
N90409501
In Stock
$0.99 USD
Free Shipping
on orders $49 and up
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.

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Manufacturer names and/or part numbers are used only for identification purposes.

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