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Parts Directory
Body 123
Interior 123
Air Conditioning & Heating
Brake System
Cooling System (engine)
Drive Line and Axels
Electrical, Switches and Cables
Engine (parts, seals, gaskets)
Exhaust, Vacuum and EGR
Fuel, Air and Turbo Systems
Ignition
Steering
Suspension
Transmission (automatic)
Transmission (manual)
Wheel, Hub & Tire
Wiper & Washer
 


 

mercedes auto works
123 Chassis
1976-1985 Models 230, 240D, 240TD, 280E, 280CE, 300D, 300CD,300T
 
 

The worlds largest selection of new, used and reconditioned Mercedes-Benz 123 chassis air conditioning and heating parts. We have hoses, climate control units, compressors, vacuum valves, expansion valves, receiver/dryer units, temperature switches, HVAC valves, heater control regulators, mono valve repair kits, control valves, heater hoses vacuum change over valves, 3/2 valves. Whether you're restoring a classic or  keeping your daily driver running and looking its best we have the parts you need.

 
Air Conditioning and Heating
A/C Hoses HVAC Valves  
Climate Control Unit Heater Control Temp Regulator  
Compressor Heater control mono repair kit  
Climate control vacuum valve Heater control valve  
Expansion valve Heater Hoses 123 chassis  
Receiver/Dryer    
Temp Switch Vacuum change over valve  
     

A/C Compressors
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Compressor (A)
 
Compressor (B)
Air conditioning compressor
A 230,240D,TD,280, 300D, TD, CD.  1976 thru 1981 Replaces York
B 240D,TD, 300D, TD, CD & SD.  1977 thru 1985
Must be installed as per manufacturers specs and procedure to maintain warranty. Match style to your car. 3 mo warranty.
Qty. required 1
 
W123 A/C Compressor
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A/C Receiver/Dryer
 
 
 
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Receiver/Dryer
A 1977-1985 230, 240D,TD, 280, 300D, TD, CD.
Behr  Whenever you do any major work to your AC (compressor, hoses etc.) replace the dryer. Includes seals (not shown)
Receiver/Dryer 31.68
Qty. required 1. new only.
 
 
W123 A/C Receiver / Drier
 
Temperature Sensor/Switch
(A)
Temperature Sensor/Switch
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(B)
Temperature sensor
300D,TD,CD.1978 thru 1985.
A Sensor at Evaporator
B Sensor at Receiver/Dryer 2 wire 53 deg Celsius: w/ 6mm threads, early version.
 
Qty. required 1ea
 
W123 A/C Temperature Sensor
 
HVAC Pressure Switch
(C)
 
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(D)
 
Pressure switch at Receiver/Dryer
C Black latest version for above receiver/dryer 9.5mm thread $16.11
D Green 10mm thread - has lower temp rating. 2 wire: w/ 10mm threads. Unavailable
E Red standard 10mm thread -Unavailable
Recommended upgrade when using 134A
Qty. required 1
 
W123 A/C Pressure Switch
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A/C Expansion Valve

 

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A/C Expansion Valve.
300D,TD,CD & SD. 1976 thru 1985.For R12 and R-134A
A 76,77 230, 240D,TD,280,  300D,CD,TD. for York R-210R rectangular style compressor.
B 77-85 76,77 230, 240D,TD, 280, 300D,CD,TD. for R4 style round compressor.
Includes new o-ring seals
Qty. required 1
 
W123 A/C Expansion Valve
 
A/C Climate Control Unit
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A/C, Heat Climate Control Unit.
240D,TD, 300D,CD,TD  1981 thru 1985.
A Remanufactured, Horizontal  3 month warranty.
Price includes refundable $50.00 core charge.
 
Qty. required 1
 
W123 Climate Control
 
  mercedes auto works
A/C, Heat Climate Control Unit.
300SD, 300SEC.1981 thru 1985
Remanufactured or used, both have a 3 month warranty. Includes $50.00 refundable core charge.
Qty. required 1
 
 
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Heater Control Temp Regulator
 
 
 

 

 
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Heater Control Unit Temperature Regulator.
A 240D,TD, 300D,TD,CD 1981 thru 1985  incl $45.00 core
B 300SD 1981 thru 1985 incl $30.00 core
Temperature regulator for climate control unit.
Qty. required 1
 
 
W123 Heater Control Temp Regulator
 
HVAC Valves
 
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Climate Control vacuum power change over valve.
300D.TD,CD &SD. 1981 thru 1985.
HVAC controls under dash behind climate control unit,
Two pin, two hose connectors
Qty. required 5.
 
W123 Climate Control Vacuum Power Changeover Valve
 
  mercedes auto works
Climate Control Vacuum Valve.
240D, 300D,TD,CD & SD. 1978 thru 1985.
 2/1 way, yellow (in engine compartment)
Qty, required 1
 
W123 Climate Control Vacuum Valve
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Heater control  mono valve repair kit.
240D, 300D,TD,CD. 1981 thru 1985.
For mono electromagnetic water valve.
Qty. required 1
 
 
 
 
 
 
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Heater control valve.  
A 240D, 300D,TD,CD. 1978 thru 1981.
 
 Match picture to your valve
 
W123 Heater Control Valve Manual
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Heater control Mono Valve solenoid.
B 240D,TD,  300D,TD,CD. 1981 thru 1985.
 
 Match picture to your valve
 
W123 Heater Control Mono Valve
 
A/C Hoses
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Compressor to condenser. (A)
 
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Receiver/dryer to condenser. (B)
A/C Hoses - 300D,TD,CD. 1981 thru1985
A Compressor to condenser.
B Receiver/dryer to condenser
 
 

W123 A/C Hoses
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Refrigerant suction at top on left side of engine: not at compressor. (C)
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federal cars for A/C comp with flange connection under engine. (D)
A/C Hoses
Refrigerant suction hose
300D,TD,CD.1981 thru1985
C Refrigerant suction at top on left side of engine: not at compressor.
D Federal cars for A/C comp with flange connection under engine.
 
 
W123 A/C Hoses
 
A/C Hoses
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Condenser to drier. (E)
 
 
 
A/C Hoses - 300SD. 1981 thru1985
E Condenser to drier
 
 
 
W123 A/C Hoses

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Heater Hoses 123 Chassis
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Aux water pump to water pump housing at engine. (A) in stock
 
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Engine to feed pipe (B)
in stock
Heater hoses
300D,TD,CD. 1981 thru 1985
A Aux water pump to water pump housing at engine. in stock
B Engine to feed pipe In stock
C Feed pipe from mono valve to firewall left side  Unavailable
D Feed pipe to aux water pump. Unavailable
E From return pipe toe aux water pump. Unavailable
 
Match your pipe shape to pictures shown.
 
 
W123 Heater Hoses
mercedes auto works
Feed pipe from mono valve to firewall left
 side (C) not in stock
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Feed pipe to aux water pump (D)
not in stock
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From return pipe toe aux water pump (E)
not in stock

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Mono valve to feed pipe at fire wall (F)
not in stock
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Mono valve to return pipe from aux water
 pump (G) not in stock
Heater hoses
300D,TD,CD. 1981 thru 1985
 
Match your pipe shape to pictures shown.
 
W123 Heater Hoses
mercedes auto works
From feed pipe at fire wall to heater core
 center (H) not in stock
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Feed pipe at fire wall to heater core
right side (I)  not in stock
 

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Heater Hoses 126 Chassis
mercedes auto works
Mono valve to feed pipe at fire wall (A)
not in stock
 
 
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Mono valve to return pipe from aux water
 pump (B) not in stock
Heater hoses
300SD 1981 thru 1985
 
Match your pipe shape to pictures shown.
Add to Cart
 

 
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Mono valve to feed pipe at fire wall (C)
not in stock
 
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Mono valve to return pipe from aux water
 pump (D) not in stock
Heater hoses
300SD 1981 thru 1985
 
Match your pipe shape to pictures shown.
Add to Cart
 
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Mono valve to feed pipe at fire wall (E)
not in stock
 
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Mono valve to return pipe from aux water
 pump (F) not in stock
Heater hoses
300SD 1981 thru 1985
 
Match your pipe shape to pictures shown.
Add to Cart