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UBI100030 - Oil Temperature Switch – Transmission Cooler

Original price - Original price €61,70
Original price
€61,70
€61,70 - €61,70
Current price €61,70
Aftermarket Part
Aftermarket: Quality alternative. This is a quality alternative, designed to fit and function like the original part, often at a more competitive price.
Oil Temperature Switch - Gearbox Oil Cooler in the automatic transmission cooling circuit.

This switch is mounted on the gearbox oil cooler and monitors transmission fluid temperature. It forms part of the transmission thermal management system on Discovery 2 Td5 and petrol engines. Early-VIN vehicles fitted with this switch used it to signal overtemperature conditions in the automatic transmission oil cooler circuit.

Note: the Td5 application applies to vehicles to VIN 4A869986; the petrol application to VIN 3A836442.
Vehicle Model Land Rover Discovery 2 1998-2004 (L318)
Fitment Notes DISCOVERY 2 1998-2004 — 2.5L Td5 5-cyl turbo diesel & petrol engines. Oil temperature warning switch on transmission oil cooler / cooling system.
Alternative Codes
UBI100030

In stock 1 unit
0 · Gouda 1 · 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 is the UBI100030 oil temperature switch used for?
The UBI100030 is an oil temperature switch mounted on the automatic transmission oil cooler of the Discovery 2. It monitors transmission fluid temperature and signals an overtemperature condition in the gearbox oil cooler circuit. It's part of the transmission thermal management on Td5 and V8 petrol Discovery 2.
How do I confirm the UBI100030 fits my Discovery 2?
Fitment splits by VIN on the Discovery 2. The Td5 application runs to VIN 4A869986 and the petrol application to VIN 3A836442. Check your VIN against the correct break for your engine before ordering, as later vehicles used a different arrangement.
What are the signs this temperature switch has failed?
A failed transmission oil temperature switch typically sticks closed, fails open or weeps around the thread. On the Discovery 2 this can trigger a false overtemperature warning or fail to warn when the transmission oil is genuinely too hot. Replace it if the warning behaviour is inconsistent.