BMW 7 Series: Cleaning Evaporator

WARNING: When handling cleaning agent, observe following protective measures:

Wear protective rubber gloves and protective goggles.

Comply with NOTES AND INSTRUCTIONS ON HANDLING CLEANING AGENTS.

A new spray lance was developed for professional cleaning and disinfection of the evaporator of the heating and air conditioning system. Course dirt contamination and bacteria can only be effectively eliminated with this spray lance.

IMPORTANT: To avoid dirtying vehicle interior:

• Close all air vents
• Heater - A/C system must be switched to air recirculation function
• Cover carpet in work area

Recycling: Carry out the cleaning operation in a suitable washing bay as the emerging cleaning agent escapes through the drain openings in the transmission tunnel.

After completing cleaning, allow car to drip-dry for approx. 5 minutes.

Necessary preliminary tasks:

• Remove REAR UNDERBODY PROTECTION
• Remove MICROFILTER FOR PASSENGER COMPARTMENT VENTILATION

NOTE: Cleaning procedure must be performed in two steps with special tool 2 222 502.

STEP 1:

Insert special tool 2 222 502 in the rear opening of the microfilter housing (1) at position (2) as shown in Fig.168.

Fig. 168: Inserting Special Tool 2 222 502

Move special tool 2 222 502 from top downwards (A) up to stop.

At the same time, press special tool 2 222 502 at position (1) in the direction of the arrow against the microfilter housing.

Spray approximately half of the cleaning agent. Then pull the special tool 2 222 502 out of the microfilter housing.

Fig. 169: Spraying Half Of Cleaning Agent

Step 2: Insert special tool 2 222 502 in the rear opening of the microfilter housing (2) at position (1) as shown in Fig. 170.

Fig. 170: Inserting Special Tool 2 222 502

Move special tool 2 222 502 from top downwards (A) up to stop.

At the same time, press special tool 2 222 502 at position (1) in the direction of the arrow against the microfilter housing.

Spray the remaining half of the cleaning agent. Then pull the special tool 2 222 502 out of the microfilter housing.

Fig. 171: Spraying Remaining Half Of Cleaning Agent

NOTE: Set heating - A/C system to footwell ventilation and fresh-air mode. Open side windows/doors.

In order to eliminate the last remnants of cleaning agent, repeat this process shortly before handover to the customer.

Spraying Lance For Air Conditioning

Special tool 2 222 502

The spraying lance has a special form that is adapted specifically to the air conditioning unit.

Fig. 172: Identifying Spraying Lance (1 Of 2)

The spraying lance is used in combination with the HRS spray gun (order number 81 45 9 429 217).

The Seku Aircond cleaning agent can no longer be ordered; instead, air conditioner cleaner (order number 83 19 0 447 911) is now available.

Fig. 173: Identifying Spraying Lance (2 Of 2)

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