Home Auto Repair BMW’s with ZF & 4L30E Transmission Fluid Level Checking Procedure

BMW’s with ZF & 4L30E Transmission Fluid Level Checking Procedure

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Download BMW’s with ZF & 4L30E Transmission Fluid Level Checking Procedure – Checking the fluid level may be necessary if there is evidence of a leak, a complaint related to fluid level or in the event repairs are made to the transmission. Procedure Fluid level checking procedure for all transmissions without a dipstick 1. The transmission temperature must be between 30 deg. C and 50 deg. C before checking can begin. Use the DIS or the MODIC to determine the transmission temperature. 2. The vehicle must be level and without load. With the engine running, switch on the air conditioning. This will increase the idle speed and ensure that all oil passages in the transmission are filled with oil. 3. Step on the brake firmly, apply parking brake fully and move the selector level through each gear position, pausing briefly in each gear. 4. With the engine running and selector lever in Park position, remove the filler plug (2) located on the transmission (see Fig. 1 through Fig. 6 for location). If a small stream of oil runs out, the fluid level is correct. 5. If no oil runs out when the filler plug is removed, the fluid level is too low. Add oil until it starts to overflow. 6. With the engine running, reinstall the oil filler plug and tighten to proper torque. (Refer to tables below for proper tightening torque)