APR
APR Gen 5 Haldex Upgraded Pressure Relief Valve Spring - Stage 2
APR Gen 5 Haldex Upgraded Pressure Relief Valve Spring - Stage 2
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The APR Stage 2 Spring Upgrade for Haldex is the hardware component that unlocks the full potential of APR’s AWD controller calibration for Gen 5 Haldex. Engineered as a direct replacement for the factory clutch pressure relief spring, this precision-calibrated upgrade enables significantly higher achievable clamping pressures under increased torque demand while maintaining OEM-level drivability and system integrity. When paired with APR Stage 2 software for Haldex, the upgraded spring supports dramatically increased clutch pressure during high-load conditions, improving torque transfer to the rear axle and delivering faster, more consistent AWD engagement during aggressive launches and performance driving. The result is improved traction, stronger launches, and enhanced confidence when putting power to the pavement. Unlike spring-only solutions that require disassembling and modifying the factory valve assembly, the APR Stage 2 hardware is engineered as a simple, direct replacement component minimizing installation complexity while preserving factory safeguards and control architecture. Designed to work seamlessly within the OEM Haldex control strategy, the APR Stage 2 Spring Upgrade completes a fully integrated drivetrain performance solution allowing increased torque capability without compromising daily drivability or long-term reliability.
Features
- Our instrumented Haldex unit achieved 22+ Bar clutch pressure increase over Stage 1 & nearly 30 Bar over stock
- APR Stage 2 Spring Upgrade for Haldex is supplied as a fully assembled, direct replacement part.
- Increased pressure means an increase in torque capacity transferrable through the Haldex unit
- APR recommends the proper APR Service Kit for Haldex when installing spring upgrade
- Stage 2 requires only a simple spring change & software flash!
Vehicle Fitment
- 2012-2013 Audi A3 Quattro
- 2015-2019 Audi A3 Quattro
- 2017-2019 Audi RS3
- 2015-2019 Audi S3
- 2014-2019 Audi TTS Quattro
- 2019 Volkswagen Arteon
- 2012-2013 Volkswagen Golf R
- 2015-2019 Volkswagen Golf R
- 2018 Volkswagen Passat
- 2015 Volkswagen Passat
- 2016-2017 Volkswagen Passat
- 2015-2017 Volkswagen Passat
- 2017 Volkswagen Passat
- 2019 Volkswagen Passat
- 2016 Volkswagen Passat
- 2015-2016 Volkswagen Tiguan
Please verify exact fitment (engine, submodel, and trim) before purchasing.
Manufacturer Part Number: MS100267
Images are for illustration purposes only; actual product may vary.
⚠ WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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Manufacturer's Warranty — APR
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Manufacturer's Warranty — APR
APR warrants its products to be free from defects in materials and workmanship prior to installation. Coverage runs to the original purchaser only and is non-transferable, and the warranty period varies by product — each part carries the term set by the manufacturer, so check the coverage that applies to the specific item. Not covered: labor; misuse or abuse; improper installation; failure of related or connected components; and any product not purchased from APR or an authorized dealer. Grey-market purchases are not supported — claims on product bought outside authorized distribution are declined. Claims are made through APR or the authorized dealer or reseller you purchased from, so if you bought it here, contact PitStopTuning and we'll file the claim with APR for you.
Warranty terms are set by the manufacturer and may change. Contact us if you need help with a warranty claim.
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