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WTR500030 - Fuel Pump Leak Detection by Bosch Land Rover Range Rover

WTR500030 - Leak Detection Pump – Fuel Tank EVAP

- €164,50
€164,50
€164,50 - €164,50
€164,50
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 Bosch
Leak Detection Pump - DMTL (Diagnostic Module Tank Leakage) unit for the fuel tank evaporative emission (EVAP) system.

The module sits between the charcoal canister and atmosphere and serves two roles. In normal running it provides the filtered fresh-air vent path that allows the canister to purge into the inlet manifold. During an engine-off diagnostic cycle it closes that vent, runs its internal vane pump to raise a small pressure in the sealed tank and vapour lines, and measures the current its motor draws. A calibrated reference orifice inside the module gives the baseline current that measurement is compared against, which is what allows a coarse leak to be distinguished from a fine one.

The result is reported to the engine management, which stores an EVAP fault and lights the malfunction indicator lamp when the system fails to hold pressure.

Petrol EVAP systems.
Vehicle Model Land Rover Defender New 2020+
Land Rover Discovery 3 2005-2009 (L319)
Land Rover Discovery 4 2010-2016 (L319)
Land Rover Discovery 5 2017+ (L462)
Land Rover Discovery Sport 2015+ (L550)
Land Rover Freelander 2 2006-2014 (L359)
Range Rover 2002-2012 (L322)
Range Rover 2013-2022 (L405)
Range Rover 2022+ (L460)
Range Rover Sport 2005-2013 (L320)
Range Rover Sport 2023+ (L461)
Range Rover Evoque 2012-2018 (L538)
Range Rover Evoque 2019+ (L551)
Fitment Notes Bosch DMTL fuel tank leak detection pump (diagnostic module tank leakage) — petrol EVAP systems
DISCOVERY 3 2005-2009 — 4.0 V6, 4.4 V8 Petrol
DISCOVERY 4 2010-2016 — 4.0 V6, 3.0 V6 SC, 5.0 V8 Petrol
DISCOVERY 5 2017> — 2.0 I4, 3.0 V6 Petrol
DISCOVERY SPORT 2015> — 2.0 I4 Petrol
FREELANDER 2 2006-2014 — 2.0 T/C, 3.2 I6 Petrol
EVOQUE L538 2012-2018 & L551 2019> — 1.5/2.0 Petrol
NEW DEFENDER L663 2020> — 2.0 I4, 3.0 I6, 5.0 V8
RANGE ROVER L322 2002-2012 — 4.4 V8, 5.0 V8 Petrol
RANGE ROVER L405 2013> — 5.0 V8 Petrol
RANGE ROVER L460 2022> — 3.0 I6 Petrol
RANGE ROVER SPORT L320 2005-2013 — Petrol
RANGE ROVER SPORT L461 2023> — 3.0 I6 Petrol
Alternative Codes
WTR500030

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 is the WTR500030 leak detection pump used for?
This Bosch DMTL (Diagnostic Module Tank Leakage) unit serves the fuel tank evaporative emission (EVAP) system on petrol Land Rovers. In normal running it provides the filtered fresh-air vent for the charcoal canister to purge. During an engine-off cycle it pressurises the sealed tank to test for leaks.
Which vehicles use this leak detection pump?
It fits a wide range of petrol Land Rovers, including Discovery 3, 4 and 5, Range Rover Sport L320 and L461, Freelander 2, Evoque, the new Defender L663 and Range Rover L322, L405 and L460 petrol. It's petrol EVAP only. Use your VIN to confirm fitment.
What are the symptoms of a failing DMTL pump?
A failing leak detection pump typically triggers an EVAP or small-leak fault code and lights the engine warning lamp on these petrol models. Since it also provides the canister vent path, a seized unit can affect purge. It's diagnosed through the engine-off leak test cycle.

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