64 12 160 Removing and installing or replacing complete independent heater with bracket

Recycling 

Fuel escapes when fuel line is detached. Have a suitable collecting vessel ready.

Catch and dispose of escaping fuel.

Observe country-specific waste disposal regulations.

Necessary preliminary tasks 

• Remove FRONT WHEEL ARCH COVER (FRONT SECTION)
• Remove FRONT UNDERBODY PROTECTION

Release screws (1).

Remove lower left cover (2).

Fig 1: Identifying Left Underbody Cover Screws

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Release spring clamps (1) and detach coolant hoses.

Installation note: 

Top up coolant and vent cooling system  . See 17 00 005 DRAINING AND ADDING COOLANT (N63) ; 17 00 039 VENTING AND FILLING COOLING SYSTEM WITH VACUUM FILLING UNIT or 17 00 039 BLEED COOLING SYSTEM AND CHECK FOR WATERTIGHTNESS (N52T, N53, N55) .

Unlock and detach fuel line (2).

Fig 2: Removing Coolant Hoses

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Unlock plug connections (1) and disconnect.

Unfasten screws (2).

Lower independent heater (3).

Installation note: 

Make independent heater (3) is correctly seated.

Fig 3: Removing Independent Heater

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Release spring strap (1) and detach coolant hose (3).

Remove independent heater (3).

Fig 4: Identifying Independent Heater, Spring Strap And Coolant Hose

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Replacement 

Until 09/2012, replace for diesel engines duplicate type label (1).

Fig 5: Identifying Diesel Engines Label

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