MHK100920 - Lambda oxygen sensor D2 V8 front by AllmakesElectrical Part Land Rover Range Rover Discovery

MHK100920 - Lambda Sensor – V8 – Front

- €45,30

€45,30

€45,30 - €45,30

€45,30

Aftermarket: Quality alternative. This is a quality alternative, designed to fit and function like the original part, often at a more competitive price.

Lambda Sensor (oxygen sensor) fitted to the exhaust downpipe, upstream of the catalytic converter, in the engine management circuit of the 4.0/4.6L V8 petrol engine.

The front sensor measures the oxygen content of the exhaust gas as it leaves the cylinder head and returns this signal to the engine control module. The module uses it to hold the air/fuel mixture in closed-loop control, keeping fuelling accurate and combustion efficient.

Vehicle Model Land Rover Discovery 2 1998-2004 (L318)

Fitment Notes DISCOVERY 2 1998-2004 — 4.0/4.6L V8 Petrol. Front oxygen/lambda sensor, on downpipe.

Alternative Codes

MHK100920MHK100920ES

In stock 5 units

3 · Gouda 2 · Drachten

Express delivery available

When will my order arrive?

Order before 15:00 (Mon–Fri): same-day dispatch for in-stock items.
UPS Express (order before 14:00): dispatched today, delivered tomorrow where available.
Netherlands / Belgium / Germany: 2–4 working days.
Other EU countries + UK: 4–8 working days.
Outside EU/UK: delivery times vary — contact us for an estimate.

Items may ship from multiple warehouses at no extra cost.

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 front lambda sensor do on a Discovery 2 V8?

The front lambda sensor measures the oxygen content of the exhaust gas leaving the cylinder head and feeds that signal to the engine control module. On the 4.0/4.6L V8 petrol Discovery 2 it sits on the exhaust downpipe, upstream of the catalytic converter, letting the ECM hold the air/fuel mixture in closed-loop control.

Which sensor position is this, upstream or downstream?

This is the front (upstream) sensor, mounted on the downpipe before the catalytic converter. It's the pre-cat sensor the ECM uses for live fuelling corrections, not the post-cat sensor that monitors converter efficiency. Fits the Discovery 2 4.0/4.6L V8 petrol.

What are the signs a front oxygen sensor is failing?

Common signs on the V8 Discovery 2 are poor fuel economy, rough or uneven idle, hesitation and an illuminated engine warning light with an oxygen sensor fault code. A lazy or dead sensor typically pushes the ECM out of accurate closed-loop fuelling.

How do I confirm this fits my vehicle?

This front lambda sensor fits the Land Rover Discovery 2 (1998-2004) with the 4.0 or 4.6L V8 petrol engine. It does not apply to the Td5 diesel. Check your engine type before ordering, as petrol and diesel exhaust sensors differ.