T5,T6 Turbo N75 Boost Control Valve - 1.9 TDI + 2.0 TDI + 2.5 TDI - Top Quality

Premium quality turbo pressure converter valve manufactured by Febi Bilstein, designed to provide precise and reliable boost control on turbocharged Volkswagen engines.

The N75 valve (often referred to as the “moo valve”) is an electro-pneumatic solenoid that regulates turbo boost pressure by controlling the vacuum or pressure signal sent to the turbo actuator. Working alongside the ECU, it constantly adjusts boost levels based on engine load and throttle input, ensuring optimal performance, fuel efficiency and engine protection.

A worn or failing N75 valve can lead to common issues such as limp mode, inconsistent boost, hesitation, poor acceleration or fault codes relating to overboost/underboost conditions. Replacing it with a high-quality Febi Bilstein unit restores factory-correct operation, smooth throttle response and dependable turbo performance.

Manufactured to OEM standards, this Febi Bilstein valve offers excellent durability, consistent operation and long service life even under high temperatures and demanding driving conditions.

Features

• Genuine quality from Febi Bilstein
• Turbo boost pressure control valve (N75 / moo valve)
• Restores correct turbocharger boost regulation
• Improves throttle response and fuel efficiency
• Built to withstand heat and pressure extremes

Specifications

• Operating mode: Electric-pneumatic
• Valve type: Solenoid valve
• Voltage: 12V
• Number of pins: 2

How It Works
The ECU sends signals to the N75 valve, which rapidly opens and closes to regulate vacuum/pressure to the turbo actuator. This controls the position of the turbo vanes or wastegate, maintaining correct boost pressure for efficient and safe engine operation.

Recommended Additional Parts

• Vacuum hoses (inspect and replace if perished)
• Turbo actuator (if faulty)
• Boost/MAP sensor
• Intercooler hoses and clips
• Diagnostic scan to clear stored fault codes

To Fit

Watercooled VW

• VW Transporter T5 – 2003–2015
  • 1.9 TDI (AXB, AXC, BRR, BRS)
  • 2.5 TDI (AXD, AXE, BLJ, BNZ, BPC)
• VW Transporter T6 – 2016–2019
  • 2.0 TDI (CCH, CFCA, CSDA, CAAA, CAAC, CXEB, CXFA, CXGA, CXGB, CXHA)
• VW Caddy Mk3 – 2004–2010
  • 2.0 SDI / TDI
• VW Golf Mk5 – 2004–2008
  • 2.0 TDI
• VW Touareg (7L) – 2003–2010
  • 2.5 TDI (163–174PS)
• VW Phaeton – 2002–2006
  • 5.0 V10 TDI
• VW Multivan / California T5 – 2003–2009
  • 1.9 TDI / 2.5 TDI