1 1

BMW

Genuine BMW N47/N57 Diesel Coolant Thermostat 11518512234 (OEM) Fits E90/E91/E92/E93, F20/F21/F22, F30/F31/F34, F32/F33/F36, F10/F11, F06/F12/F13, F01/F02, E84, F25/F26, F15, F16 125d 320d 330d 520d 530d 535d 640d X5 X6 M50d M550d

Genuine BMW N47/N57 Diesel Coolant Thermostat 11518512234 (OEM) Fits E90/E91/E92/E93, F20/F21/F22, F30/F31/F34, F32/F33/F36, F10/F11, F06/F12/F13, F01/F02, E84, F25/F26, F15, F16 125d 320d 330d 520d 530d 535d 640d X5 X6 M50d M550d

£68.63
£71.00 £68.63
Sale Sold out
Shipping calculated at checkout.

Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.

BMW Group OE Coolant Temperature Regulator - Part No. 11518512234

Restore proper running temperature and reliable heater performance on your BMW diesel with this original-equipment coolant thermostat assembly, part number 11518512234. Designed for N47 and N57 engines across a wide range of models, this factory-spec unit delivers correct warm-up, stable operating temps and long-term durability. We fit this exact part on our own cars and customer vehicles at MJ Modifications and the results have been consistently excellent.

Key benefits

  • OE fit and finish for N47 and N57 diesel applications
  • Accurate temperature control for smooth running and efficiency
  • Restores warm cabin heat and proper warm-up time
  • Complete thermostat housing with the correct electrical connector for a straightforward swap
  • Ideal remedy for low temperature readings, slow warm-up or thermostat-related fault codes

Where it fits

Suitable for BMW models using N47 2.0d and N57 3.0d diesel engines, including but not limited to:

  • 1 Series F20 F21 - 114d 116d 118d 120d 125d
  • 2 Series F22 - 218d 220d 225d
  • 3 Series E90 E91 E92 E93 - 316d 318d 320d
  • 3 Series F30 F31 F34 - 316d 318d 320d 325d 328d 330d 335d including xDrive
  • 4 Series F32 F33 F36 - 418d 420d 425d 430d 435d including xDrive
  • 5 Series F10 F11 - 518d 520d 525d 530d 535d M550d
  • 6 Series F06 F12 F13 - 640d including xDrive
  • 7 Series F01 F02 - 730d 740d 750d including xDrive and long wheelbase
  • X1 E84 - 16d 18d 20d 25d
  • X3 F25 - 18d 20d 28d 30d 35d
  • X4 F26 - 30d 35d
  • X5 F15 - 25d 30d 35d 40d M50d
  • X6 F16 - 30d 40d M50d

Engine codes: N47 four-cylinder diesel and N57 six-cylinder diesel.

Why choose OE

  • Built to BMW Group specification for precise temperature regulation
  • Direct-fit replacement that matches the original housing and plug connection
  • Proven reliability - used by us in-house with great customer feedback

Part number

11518512234

Compatibility check

We verify fitment before dispatch. Add your UK registration or the last 7 of your VIN at checkout so we can confirm this thermostat suits your specific vehicle.

Warranty

Two years manufacturer warranty for UK customers and one year for international customers when a VIN is provided at checkout on compatible vehicles.

Professional fitting

Prefer installation by specialists who work on these platforms every day? Book fitting with MJ Modifications in Warwickshire. Request a quote: info@mjmodifications.co.uk.

Search-friendly terms

BMW coolant thermostat assembly, OE thermostat housing, water thermostat N47, water thermostat N57, temperature regulator 11518512234, BMW diesel temperature control unit, N47D20 thermostat, N57D30 thermostat, 2.0d thermostat housing, 3.0d thermostat module, BMW F-series thermostat, BMW E-series thermostat, 320d running cold fix, 330d temperature issue, 520d warm-up problem, 530d heater not hot, 535d thermostat module, 640d thermostat housing, X5 30d thermostat replacement, X6 diesel thermostat, M50d M550d thermostat unit.

View full details