64 53 551 Removing and installing/replacing capacitor (with desiccant insert) for heating and air conditioning system

WARNING: This page is about a different car, the 2010 BMW 135i, 2009 BMW 135i, and 2008 BMW 135i. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

Risk of injury!

Refrigerant circuit is under high pressure!

Handling R134a refrigerant: see SAFETY INSTRUCTIONS and INSTRUCTIONS FOR HANDLING .

Avoid contact with refrigerant and refrigerant oil.

Handling refrigerant oil: see safety instructions for HANDLING REFRIGERANT OIL (FOR REFRIGERANT R134A) .

IMPORTANT:

Risk of damage!

Restart engine only when A/C system has been correctly filled.

Follow INSTRUCTIONS FOR OPENING AND REPLACING PARTS IN REFRIGERANT CIRCUIT .

If A/C system is opened for more than 24 hours: replace DESICCANT INSERT FOR A/C SYSTEM .

IMPORTANT:

The desiccant insert can only be replaced in vehicles with production dates up to 12/08!

In vehicles after 12/08, the heating and air conditioning system capacitor must be replaced!

Necessary preliminary tasks:

DRAW-OFF A/C System.
Remove RADIATOR .

Release screws (1).

Tightening torque 64 53 6AZ

Detach refrigerant lines (2) and (3) towards rear from A/C system condenser (4).

Installation:

Replace sealing rings and moisten with suitable refrigerant oil.

Fig 1: Identifying Refrigerant Lines & Towards Rear From A/C System Condenser

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Release screw (1).

If necessary, lay refrigerant lines (2) and (3) slightly to one side.

Fig 2: Identifying Lay Refrigerant Lines

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Unlock retaining lug (1) in direction of arrow and pull A/C system condenser (2) towards rear slightly.

Fig 3: Unlocking Retaining Lug

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Feed out A/C system condenser (1) upwards between vent line (2) and cover (3).

Fig 4: Identifying A/C System Condenser Upwards Between Vent Line & Cover

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After installation:

EVACUATE AND FILL A/C system.
Fill and vent cooling system and check for leaks. See VENTING COOLING SYSTEM AND CHECKING FOR WATER LEAKS .