Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2017 BMW M2 Automatic DCT TransFACTORY OEM SERVICE PROCEDURE
Technical Data - Repair (F87): Radiator
N55 ENGINE (UP TO MODEL YEAR 2018):
17 11 RADIATOR WITH MOUNTING F20/F21/F22/F23/F30/F31/F32/F33/F34/F35/F36/N55/N55 HYBRID SPECIFICATION
| Cap for cooling system | ||
| Pressure relief valve opens when the pressure exceeds the ambient pressure. | bar | 1.4 +0.1 -0.2 |
| Electric changeover valve must open at latest when the pressure is lower than the ambient pressure | bar | 0.1 |
| Test radiator pressure (excess pressure) | bar | 1.5 |
S55 ENGINE (AS OF MODEL YEAR 2019):
17 11 RADIATOR WITH MOUNTING F80/F82/F83/S55 - TECHNICAL DATA SPECIFICATION
| Cap for cooling system | ||
| Pressure relief valve opens when the pressure exceeds the ambient pressure. | bar | 2.0 +0.1 -0.2 |
| Electric changeover valve must open at latest when the pressure is lower than the ambient pressure | bar | 0.1 |
| Test radiator pressure (excess pressure) | bar | 1.5 |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.