17 22 010 Removing and installing/replacing heat exchanger for automatic transmission (N62)

WARNING: This page is about a different car, the 2005 BMW 745i, 2004 BMW 745i, 2003 BMW 745i, and 2002 BMW 745i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

17 0 030

Follow instructions for working on cooling system. Refer to 17 00... INSTRUCTIONS FOR WORKING ON COOLING SYSTEM .

Drain coolant from radiator.

Installation:

Top up coolant and vent cooling system. Refer to 17 00 005 Draining and adding coolant (N62) .

Recycling

Catch and dispose of drained coolant.

Transmission fluid emerges when oil lines are detached from heat exchanger.

Catch and dispose of escaping transmission fluid.

Observe country-specific waste-disposal regulations.

Unlock water hoses (1) on heat exchanger (3) and disconnect.

Fig 1: Unlocking Water Hoses On Heat Exchanger

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Release nut and remove hydraulic hose (1) with holder from mounting.

Fig 2: Releasing Nut

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Pull spring clamp (1) downwards.

Fig 3: Removing Heat Exchanger

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Remove heat exchanger (3).

Unlock hydraulic lines (1 and 2) on heat exchanger (3) with special tool 17 0 030 and disconnect.

Fig 4: Locating Hydraulic Lines

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Installation:

Connect hydraulic line (2) with TOP marking to upper pipe of heat exchanger.

CAUTION: Check fluid level in automatic transmission, refer to Maintenance and General Information.