Fitment: Fits selected models across Audi and Volkswagen. Confirm exact fitment before ordering.
Product Description
The Cooltec Valve Non Return One Way is an essential engine pressure control valve designed for specific Audi and Volkswagen models. This component allows fluid or vacuum to flow in only one direction, which is critical for maintaining correct pressure levels within the engine system. Its design features multiple hose connections and an integrated electrical connector, ensuring reliable operation within complex engine layouts.
This valve is compatible with select Audi and Volkswagen vehicles, including popular models equipped with 1.4 TSI and TFSI engines. It is commonly used in pressure control circuits to prevent backflow and maintain stable engine performance. Always confirm your vehicle's model, year, engine size, and engine code before ordering to ensure correct fitment.
Common symptoms of a failing one-way valve include rough idling, loss of engine power, poor fuel economy, unexpected engine warning lights, whistling or hissing noises from the engine bay, and inconsistent boost pressure. You may also notice increased emissions or difficulty starting the engine.
If you experience any of these issues, it is advisable to inspect and replace the valve promptly. Replacing a faulty one-way valve helps restore proper engine pressure control, preventing further damage to engine components and ensuring smooth operation.
Shop with confidence at MiMi Auto Parts, your trusted supplier of genuine and aftermarket automotive components. We offer nationwide delivery throughout South Africa and are always ready to assist with expert advice. Please confirm your vehicle details before purchase for the best fit.
Common signs this part may need replacement
Rough or unstable idling
Loss of engine power
Poor fuel economy
Engine warning light illumination
Whistling or hissing noises from the engine bay
Inconsistent or reduced turbo boost pressure
Increased exhaust emissions
Difficulty starting the engine
Engine hesitation during acceleration
Typical replacement guidance
Replace the valve non return one way if you notice symptoms such as rough idling, loss of power, or inconsistent pressure levels. Timely replacement prevents further engine complications and helps maintain optimal performance.
Why timely replacement matters
A faulty one-way valve can disrupt engine pressure balance, leading to performance issues and potential engine damage. Timely replacement ensures reliable pressure control and protects other engine components.
Vehicle Compatibility
This part is confirmed to fit the following vehicles:
AUDI A1 / S1 (8X1, 8XK) 2011 – 2019 1.4 TFSI (CAXA|CNVA) – 90 kW / 122 HP
AUDI A1 / S1 Sportback (8XA, 8XF) 2012 – 2019 1.4 TFSI (CAXA|CNVA) – 90 kW / 122 HP
AUDI A3 / S3 (8P1) 2003 – 2012 1.4 TFSI (CAXC|CMSA) – 92 kW / 125 HP
AUDI A3 / S3 Sportback (8PA) 2005 – 2013 1.4 TFSI (CAXC|CMSA) – 92 kW / 125 HP
VOLKSWAGEN GOLF VI (5K1) 2008 – 2013 1.4 TSI (CAXA) – 90 kW / 122 HP
VOLKSWAGEN JETTA V (1K2) 2005 – 2011 1.4 TSI (CAXA) – 90 kW / 122 HP
VOLKSWAGEN JETTA VI (162, 163, AV3, AV2) 2010 – 2026 1.4 TSI (CAXA|CMSB) – 90 kW / 122 HP
VOLKSWAGEN TIGUAN (5N_) 2007 – 2018 1.4 TSI (CAXA) – 90 kW / 122 HP
Fitment support
Not sure if this part fits your vehicle? Contact MiMi Auto Parts with your vehicle make, model, year, and engine code before ordering and we will help confirm fitment.
Installation note
Some auto parts require correct tools, mechanical knowledge, and safety procedures. MiMi Auto Parts recommends professional inspection and installation where required.
Frequently Asked Questions
What should I check before ordering this part?
Check the part name, brand, part number, and vehicle compatibility information on this page. Confirm your vehicle make, model, year, engine size, and engine code before ordering. If you are unsure, contact MiMi Auto Parts before checkout.
Does this part fit my vehicle?
Please check the vehicle compatibility section on this page and confirm your vehicle make, model, year, engine size, and engine code before ordering. If you are unsure, contact MiMi Auto Parts before checkout.
Is the price VAT-inclusive?
Yes, product prices on MiMi Auto Parts are shown inclusive of VAT where applicable.
Do you deliver across South Africa?
Yes, MiMi Auto Parts delivers nationwide in South Africa. Delivery cost and estimated timing are calculated during checkout based on your location.
Is professional installation recommended?
Professional installation is recommended for safety-critical and technical parts such as airbag, clock spring, brakes, suspension, steering, clutch, cooling, engine, and electrical components. For guidance specific to this part, see the installation note on this page.