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STC4198 - Control Boost Valve by PierburgEngine Part Land Rover Range Rover

STC4198 - Boost Control Solenoid Valve

- €115,20
€115,20
€115,20 - €115,20
€115,20
OEM Part
OEM: Made by an Original Equipment Manufacturer. This part is made by an original equipment manufacturer or under their license, ensuring compatibility and quality.
Brand Pierburg
Boost Control Solenoid Valve - an electro-pneumatic vacuum switching valve in the engine vacuum control circuit.

The solenoid is energised by the engine management ECU and modulates the vacuum supply passed on to a diaphragm actuator, working either as the turbocharger boost control valve or as the EGR vacuum regulator depending on the installation. It is plumbed between the vacuum source and the actuator, with its electrical connector on the valve body.

Typical failure symptoms are loss of boost control, an EGR valve that no longer opens or closes cleanly, and related engine management fault codes.
Vehicle Model Land Rover Freelander 1 1996-2006 (L314)
Range Rover Classic 1994-2001 (P38)
Range Rover 2002-2012 (L322)
Fitment Notes FREELANDER 1 1997-2006 — Td4 2.0L I4 16V Diesel (M47); turbocharger vacuum control / EGR vacuum regulator solenoid
RANGE ROVER P38 1994-2001 — 2.5L 6 Cyl BMW Diesel; EGR vacuum regulator
RANGE ROVER L322 2002-2009 — M57 D30 3.0L BMW Diesel; EGR vacuum regulator solenoid
Alternative Codes
STC4198

Available to order 2–3 weeks

Not currently in stock. Order now — typically ships within 2–3 weeks.

Need it faster? Contact us about express import (2–5 business days).

When will my order arrive?

This item is ordered from our supplier on request. Typical lead time is 2–3 weeks from order confirmation.

  • Netherlands / Belgium / Germany: 2–4 working days after dispatch.
  • Other EU countries + UK: 4–8 working days after dispatch.
  • Outside EU/UK: contact us for an estimate.

Need it faster? Express import available in 2–5 business days — contact us before ordering.

Job kits containing this part

This part is included in 0 job kit(s) below. Pick the kit that matches your vehicle and job, then add what you need.

Frequently asked questions

What does the STC4198 boost control solenoid valve do?
The STC4198 is a vacuum control solenoid that regulates turbocharger boost and EGR vacuum on BMW-derived diesel engines. It's fitted to the Freelander 1 Td4 (M47), Range Rover P38 2.5L diesel, and Range Rover L322 3.0L diesel (M57). This Pierburg unit switches vacuum to the actuator on ECU command.
Where is the boost control solenoid located?
The boost control solenoid typically mounts in the engine bay near the turbocharger or intake, plumbed into the vacuum lines between the vacuum pump and the turbo or EGR actuator. On the Freelander 1 Td4 and BMW diesel Range Rovers it sits on a bracket in the engine compartment.
What are the signs this solenoid needs replacing?
Common symptoms are loss of turbo boost, limp mode, an EGR fault code, or erratic idle. The solenoid fails when its internal valve sticks or the coil degrades, disrupting vacuum control. On the Td4 and BMW diesels this often shows as reduced power with stored boost or EGR faults.
How do I confirm this fits my vehicle?
The STC4198 fits the Freelander 1 Td4 (2.0L M47 diesel), Range Rover P38 2.5L BMW diesel, and Range Rover L322 3.0L M57 diesel. Petrol models aren't covered. Check your engine code and use your VIN to confirm the diesel variant before ordering.

Alternative & Related Options

Same part, different brands or quality grades. Click any option to view full details.

1 option
STC4198A - Boost Control Solenoid Valve
OEM STC4198A - Boost Control Solenoid Valve
Stock 0
€88,50 excl. VAT
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