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.
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HOMESERVICE MANUALSBMW2013135IS 2D CONVERTIBLE, AUTOMATIC DCT TRANSREPAIR AND DIAGNOSISENGINE MECHANICALMECHANICALENGINE - OPERATING FLUIDS1.0 GENERAL INFORMATIONFAVORABLE VISCOSITY TEMPERATURE BEHAVIOR
2013 BMW 135is 2D Convertible, Automatic DCT Trans
Favorable Viscosity Temperature Behavior
2013 BMW 135is 2D Convertible, Automatic DCT TransSECTION Favorable Viscosity Temperature Behavior
Viscosity is the tendency of oil to resist flowing. Engine oil, when cold, should be thin enough so that the engine can be cranked over. Hot oil should be thick enough to maintain proper lubrication.
RENDER: 1.0x
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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.