Water Flange Thermostat (N42, N46, N45) (BMW 1 Series E81/E87 / E82/E88 / 3 Series E36 / E46 / E90 / 5 Series E60 / X1 E84 / X3 E83 / Z4 E85/E86)

R1061.30

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Water Flange Thermostat (N42 N46 N45) (BMW 1 Series E81/E87 / E82/E88 / 3 Series E36 / E46 / E90 / 5 Series E60 / X1 E84 / X3 E83 / Z4 E85/E86) is designed for specific BMW models to regulate engine temperature by controlling coolant flow

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Water Flange Thermostat (N42 N46 N45) (BMW 1 Series E81/E87 / E82/E88 / 3 Series E36 / E46 / E90 / 5 Series E60 / X1 E84 / X3 E83 / Z4 E85/E86) regulates the engine temperature by controlling coolant flow between the engine and radiator. This thermostat is essential for maintaining optimal operating temperature, contributing to engine efficiency and preventing overheating.

This water flange thermostat is designed for multiple BMW models covering the 1 Series (E81, E87, E82, E88), 3 Series (E36, E46, E90), 5 Series E60, X1 (E84), X3 (E83), and Z4 (E85, E86) range with N42, N45, and N46 engine types. Buyers should compare this thermostat with the existing unit, focusing on engine model codes and vehicle series to ensure compatibility.

Thermostats like this one generally fit at the engine coolant outlet and are crucial for regulating coolant temperature by opening and closing at specified temperatures. It is important to verify the fit by checking part numbers or by consulting a specialist if unsure about the exact model match.

  • Compatible with BMW N42, N45, and N46 engines
  • Fits various BMW series including 1, 3, 5, X1, X3, and Z4
  • Controls coolant flow to maintain engine temperature

For questions about fitment or alternative options, consider reaching out to the sales desk or submitting a request for a specific part to confirm the right thermostat for your vehicle.

Need help matching this item to your vehicle? Use more Thermostat, Vehicle Parts Finder or Request a Part with your VIN, engine number, part number or clear photos.

SKU: BB-252331 Category: Tags: , , , , , Brand:

Frequently Asked Questions

Confirm fitment before ordering
Quick answers before you order. If anything is unclear, confirm fitment first using your VIN or part number and avoid mistakes.
Helpful product answers
What vehicles are compatible with the Water Flange Thermostat (N42, N46, N45)?
This thermostat fits several BMW models including the 1 Series (E81/E87, E82/E88), 3 Series (E36, E46, E90), 5 Series (E60), X1 (E84), X3 (E83), and Z4 (E85/E86). It is designed specifically for engines with N42, N46, and N45 configurations. Always verify your vehicle’s engine code before purchasing to ensure compatibility.
How do I correctly install the Water Flange Thermostat to avoid common issues?
A common mistake is not properly sealing the flange, which can cause coolant leaks. Ensure the gasket or O-ring is in good condition and seated correctly before tightening bolts evenly. Use the correct torque specifications to avoid warping the flange or damaging the thermostat housing.
What symptoms indicate that the Water Flange Thermostat needs replacement?
If your BMW is overheating, taking too long to reach operating temperature, or the heater isn’t warming up properly, the thermostat may be faulty. Also, fluctuating temperature gauge readings can signal a stuck thermostat. Replacing it promptly helps maintain engine efficiency and prevents damage.
Is the condition of the Water Flange Thermostat new or refurbished?
The product condition is not specified. For assurance on quality and reliability, it’s best to confirm with Brits Brothers™ directly or through their Trade Partners. They can provide details on whether the thermostat is new or refurbished.
Can I request a replacement part if this thermostat is faulty after purchase?
Yes, Brits Brothers™ offers a refund and returns policy for faulty parts. You can find detailed information and initiate a request via their refund and returns page. It’s important to keep your purchase receipt and contact them promptly to ensure a smooth process. For more info, visit Refunds.
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