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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 1991 BMW M3 car and truck
repair procedures including BMW engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work
guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up &
drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install
procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c
system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix
your 1991 BMW M3 automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 1991 BMW M3 AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1991 BMW M3 cars and light trucks from 1990+
BMW -> Component Replacement & Adjustment -> HEATER CORE, REPLACE -> 318 & 325 -> 525 & 535
Vehicle: 1991 BMW M3 2.3 L4 GAS
318 & 325
- Disable air bag system as described under .
- Drain cooling system, then remove cowl panel grille screen and electric wire duct.
- Loosen mounting bolts, then remove air collection box. Air collection box may be difficult to remove.
- Remove water flange and blow air into feed hose to prevent residual coolant in heater core from leaking on interior carpeting.
- Remove lower instrument panel securing nuts.
- Pry out lower trim panel, then remove heater core double pipe.
- Remove securing screw, then remove heater core.
- Rever...
CLICK HERE TO GET FULL ACCESS TO 1991 BMW M3 A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 1991 BMW M3 AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1991 BMW M3 cars and light trucks from 1990+
Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Imported Vehicles
Vehicle: 1991 BMW M3 2.3 L4 GAS
CLICK HERE TO GET FULL ACCESS TO 1991 BMW M3 A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 1991 BMW M3 AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1991 BMW M3 cars and light trucks from 1990+
BMW -> Manual Air Conditioning & Heater System Diagnosis & Testing -> A/C COMPONENT DIAGNOSIS & TESTING -> 318is -> A/C COMPRESSOR -> BLOWER MOTOR -> Evaporator Regulation -> Heater Regulation -> TEMPERATURE REGULATOR TEST -> THERMOSTATIC SWITCH TEST
Vehicle: 1991 BMW M3 2.3 L4 GAS
THERMOSTATIC SWITCH TEST
- Remove A/C temperature switch as outlined in .
- Rotate switch to fully cold position and connect an ohmmeter to switch terminals. Meter should show continuity.
- Prepare solution of water, crushed ice, and sufficient amount of salt to reduce solution to below 20°F.
- Immerse temperature sensor of switch in ice bath while observing ohmmeter. Be careful not to get salt or water into control portion of switch.
- Ohmmeter should show no continuity while sensor is in ice bath.
- Remove sensor from ice bath a...
CLICK HERE TO GET FULL ACCESS TO 1991 BMW M3 A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 1991 BMW M3 AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1991 BMW M3 cars and light trucks from 1990+
Orifice Tube/Expansion Valve Locations -> Imported Cars & Light Trucks & Vans -> 1991-95
Vehicle: 1991 BMW M3 2.3 L4 GAS
CLICK HERE TO GET FULL ACCESS TO 1991 BMW M3 A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 1991 BMW M3 AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1991 BMW M3 cars and light trucks from 1990+
BMW -> Component Replacement & Adjustment -> BLOWER MOTOR, REPLACE -> 318 & 325 -> 525 & 535 -> Evaporator Blower Motor -> Heater Blower
Vehicle: 1991 BMW M3 2.3 L4 GAS
318 & 325
- Disarm air bag system as described under .
- Remove rear hood seal from channel and electrical wire duct grille from firewall.
- Remove air collection box.
- Remove cylinder head cover for access.
- Loosen screws and tilt blower motor electric lead cover forward.
- Loosen clips and remove cover. Disconnect blower motor electrical connectors.
- On 318 models, remove water flange for clearance.
- On all models, remove blower motor.
- Reverse procedure to install. Rearm air bag system as outlined under if equipped.
CLICK HERE TO GET FULL ACCESS TO 1991 BMW M3 A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 1991 BMW M3 AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 1991 BMW M3 cars and light trucks from 1990+
Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Imported Vehicles
Vehicle: 1991 BMW M3 2.3 L4 GAS
CLICK HERE TO GET FULL ACCESS TO 1991 BMW M3 A/C & HEATER SERVICE PROCEDURES
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