Gear Oil, Checking Level
Special tools and workshop equipment required
- Used Oil Collection and Extraction Unit SMN372500
- Protective eyewear
Procedure
Danger of causing damage to the transmission.
- Beginning approximately in September 2008, a new axle oil for the "Multitronic 0AW, FWD" transmission will be used in the factory. This transmission has an filler plug -arrow- with an internal TORX® . This transmission also has a new transmission code.
- All transmissions before the change-over are filled with the former axle oil. These transmission have a filler plug -arrow- with an interior hex head.
- Do not mix the axles oil, not even in small quantities. This will cause the sealing rings to leak. Note the allocation of the axle oils according to the transmission code letters. Only axle oil for "multitronic 0AW" which can be obtained as a replacement part must be used in front final drive.
- Replace the filler plug after checking the level. Always pay attention to the allocation according to the transmission codes . Compare the old and new filler plug to prevent leakage on the transmission.
- Axle oil temperature approximately 20 °C (68 °F) (room temperature) to max. 50 °C (122 °F).
- Move the vehicle onto a 4-column shop hoist or over a work pit so it is completely level.
- Wait 5 minutes so that the axle oil can drip down after turning off the engine.
General repair instructions. Refer to GENERAL REPAIR INFORMATION .
Clean working conditions for the automatic transmission. Refer to GUIDELINES FOR CLEAN WORKING CONDITIONS .
Always maintain the specified transmission fluid level. The transmission is very sensitive to overfilling.
After performing any repairs where the axle oil has been drained, for example after removing the front final driver cover, the front final drive must first be filled with axle oil. Refer to GEAR OIL, DRAINING AND FILLING .
-- Remove the right drive axle cover -1- inside the wheel housing.
-- Remove the bolts -arrows- and then remove the heat shield from the right drive axle.
-- Position the Used Oil Collection and Extraction Unit SMN372500 under the right side of the transmission.
Follow all applicable disposal regulations.
-- Remove the plug -arrow-.
-- Check the oil level using a self-made tool, for example, a bent wire.
- Specification: The oil level is correct when the front final drive is filled to 20 mm below the lower edge of the filler opening.
Too little axle oil:
Danger of causing damage to the transmission.
- There are different gear oils for the "multitronic 0AW transmission".
- Only gear oil available as a replacement part meant for the transmission code may be used.
- Do not mix the axles oil, not even in small quantities. This will cause the sealing rings to leak. Note the allocation of the axle oils according to the transmission code letters. . Only axle oil for "multitronic 0AW" which can be obtained as a replacement part must be used in front final drive.
- Replace the filler plug after checking the level. Always pay attention to the allocation according to the transmission codes . Compare the old and new filler plug to prevent leakage on the transmission.
- Do not mix other gear oils, even in small quantities. Leaks in the transmission will result.
-- Add some axle oil and wait 5 minutes.
- Note the allocation of the axle oils according to the transmission code letters.
Too much axle oil:
-- Extract some axle oil and wait 5 minutes.
The waiting time of at least 5 minutes is necessary for the internal oil level to even out.
-- Continue checking the oil level until it is correct.
- Replace the filler plug after checking the level. Always pay attention to the allocation according to the transmission codes .
-- Tighten the new sealing plug.
- Tightening specification. Refer to OVERVIEW - FINAL DRIVE .
-- Install the heat shield for the driveshaft, if equipped. Refer to Fig 5.