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Remove fan clutch with fan impeller and fan cowl, refer to Fan Clutch, Service and Repair. Drain and dispose of coolant. See: Coolant/Service and Repair Note: The water drain plug is located on the exhaust side on cylinder 2 in the engine block. Installation: Replace sealing ring of water drain plug. Tightening torque, refer to Specifications, Mechanical. Vent cooling system and check for leaks, refer to Cooling System, Service and Repair. See: Coolant/Service and Repair Pull locks and disconnect water hoses. Installation: Refer to general instructions for work on cooling system, refer to Cooling System, Service and Repair. Loosen nut (1). Release screws on thermostat housing, remove thermostat housing. Installation: Keep sealing faces clean and free of oil. 2000 BMW 323i (E46) L6-2494cc 2.5L DOHC (M52 TU) Note: Coolant thermostat is integrated in coolant thermostat housing and can only be replaced as a single unit. Installation: Replace gasket (1).

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Remove trim from instrument panel See: Body and Frame/Interior Moulding / Trim/Dashboard / Instrument Panel Unclip ventilation duct. Unclip left and right linkage. Remove connector, cut open cable connector, unfasten screws and lift off cover. 1997 BMW 740i (E38) V8-4398cc 4.4L DOHC (M62) Unfasten screws and remove blower motor. Installation: If applicable, remove and install regulator for heater.

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Remove upper cover from radiator. Remove alternator cooling hose. Remove fan wheel and fan coupling from water pump, refer to Fan Clutch, Service and Repair. Lift expanding rivets from left and right sides of fan cowl. Press center of fan cowl gently backwards and disconnect guide tab. Extract fan cowl and fan jointly.Installation: When installing fan cowl, attach left and right tabs to radiator brackets. Connect guide tab in upper center.

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Automatic Convertible Top Operation E36 Convertible Opening and closing of the convertible is done from one rocker switch in the center console. With the ignition key in position 1 (KLR), press and hold the switch until the processes is completed. No road speed can be present when operating the top. The indicator lamp (shown with the arrow) lights up continuously during top operation. The lamp will flash after releasing the switch if the opening or closing process is not yet completed. NOTE: The trunk cannot be opened during convertible top operation, or when the top is in the mid-way position. This is to prevent damage to the top storage box lid and trunk lid. Convenience closing from drivers door lock Models with a fully automatic top allow convenience closing from the drivers door lock. Hold the key in the lock position with the doors closed. The top will stop moving immediately if the key is released. Emergency closing procedures Should the convertible top fail electrically in the top down position it can be raised until the top can be repaired. To release the top motor drives and begin raising the top, raise the left side of the rear seat. Find a lever with an orange strap. Pull on the strap until resistance is felt and two audible clunks are heard. Open the storage compartment lid (note: The lid should open easily, if resistance is felt pull on the release lever again until it is fully disengaged). Grab the convertible top and lift it out of the storage well. Lift the rear bow to the vertical position and close the storage lid. To lock the convertible top to the windshield frame remove the plastic cover from the center of the front convertible top frame. Insert the allen key from the tool kit into the top latch motor drive. Turn the key counter-clock wise until the front convertible frame is locked to the windshield frame. NOTE: Do not operate the vehicle with the top down and the storage lid motor disengaged as the storage lid is not locked and could open during driving. Z3 Roadster

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Caution! Bearing cannot be dismantled. Do not wash out bearings.Remove brake disk (brake line remains connected), refer to Brakes and Traction Control; Disc Brake System. Remove ABS impulse sensor. Remove stabilizer link from stabilizer, Steering and Suspension. Unfasten nut. Installation: Use washer (1). Tapered spigot and bore both free of grease. Replace self-locking nut. Brace on hexagon socket if necessary. Tightening Torque, refer to Steering Specifications. Press off track rod with special tool 31 2 240. Mark the installation position of the spring strut tube (1) in the swivel bearing (2) with paint – never mark with scribing tool. Marking is not required if the factory mark is still identifiable. R installation position of right spring strut tube L installation position of left spring strut tube

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Replacing Both Control Arm Brackets Caution! If a bracket is replaced, a new bracket must also be installed on the other side. After installation, check freedom of movement of other components to control arm bracket. If necessary, bend back heat shield and cut panel. Remove engine underguard and if necessary heat shield on right. Remove reinforcement (cross). Remove reinforcement (plate). Punch-mark center of control arm. Composite parts of special tool 00 7 500. If necessary, remachine special tool 31 2 151 as per drawing. Detach bracket with special tool 00 7 500/31 2 151 from control arm. Caution! Never re-use a rubber mount pulled off from control arm. Rubber-coated inner sleeve is destroyed if pulled off dry. Caution! A control arm with pin shape (A) must be replaced! Only control arms with pin shape (B) may be fitted! Mark out measurement (A) at bottom at control arm pin. A=290.9 ± 1 mm Installation: Outer edge (B) of rubber mount must be flush with marked measurement (A). Caution! If the position of the rubber mount is not strictly adhered to, this will result in impaired vehicle handling and early rubber mount wear!

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Observe safety instruction on raising the vehicle. If necessary, when replacing linings, reset CBS display in accordance with factory specification. Note: After completing work: Fully depress brake pedal several times so that brake linings contact brake disks. When installing new brake linings at front and rear axles, brake fluid level must be brought up to “MAX” marking. Hold ignition key for at least 30 seconds in position “1″ without starting engine. This clears a fault entry in the RAM This prevents the brake wear indicator lamp from lighting up again. Remove plastic plugs (1). Right side: Disconnect plug connection for brake lining wear sensor. If necessary, replace brake lining wear sensor. Release guide screws (2) with special tool 34 1 080. Installation: Only clean guide screws, do not grease. Check threads. Replace all guide screws which are not in perfect condition. Tightening torque

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E46 M3 Coupe and Convertible with SMG from start of production to 07/02. SITUATION Gear indicator in instrument cluster flashes while driving, or, when stationary, gear can be selected, but clutch does not engage, and indicator flashes. CAUSE “Hood closed” status is not recognized by SMG control module because one or both hood latch micro switches are not functioning properly. 1. If ONE of the micro switches has failed, it is possible to drive off, but gear indicator in instrument cluster will flash. 2. If BOTH micro switches have failed, gear can be selected but clutch will not engage and gear indicator in instrument cluster will flash. The micro switch failure could be caused by damage during assembly, or incorrect adjustment. Another possible cause is improper handling of the micro switches during a workshop visit. In the workshop, care should be taken to ensure that no tools are pushed into the lower hood latch assemblies as the switching element on the micro switch could be bent or damaged. The opening must not be used for holding tools! CORRECTION On a customer complaint basis, check function of both hood latch micro switches using DISplus or GT1. Replace faulty lower/lower hood latch assembly, or correct hood adjustment as needed. Adjustment procedure and specifications can be found in Repair Instructions 41 61 014. PROCEDURE

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13 90 500 REPLACING TANK VENTING VALVE (S62) Interrogate fault memory of DME control unit. Switch off ignition. Location: Under intake air manifold at rear. Remove and install intake air manifold, refer to 11 61 050 REMOVING AND INSTALLING INTAKE AIR MANIFOLD (S62) . Disconnect plug connection (1) on tank venting valve. Pull off tank venting valve together with rubber retainer from retainer. Press locking bracket (1). Remove hose (2). Pull off molded hose (3) from tank venting valve towards bottom. Remove tank venting valve. Installation: Apply a thin anti-friction rubber coating (e.g. petroleum jelly) to sealing surface of molded hose (3).