Search | W123 | Climate Control

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$145.00

Very Early W123 Blower Motor Assembly - USED

Fits some 1977 and 1978 123 models - - with metal aluminum squirrel cage fan. you must compare with photo and description below

WARNING: This unit is not returnable!  Already had one customer return it because he did not compare it before ordering. You MUST REMOVE your old blower motor first and then confirm it looks EXACTLY like this one.

$118.50
Currently out of stock.

1977 to 1980 Automatic Climate Control Servo AMPLIFIER - USED

FITS 450SL, 450SLC, 450SE, 450SEL, 6.9, 300SD, 300D, 300CD, 300TD

Good used and tested climate control servo amplifier. Removed from a wrecked low mileage 450SL. This is a critical part to the proper operation of the big servo that controls coolant flow to the heater core. Removed from car with fully working system. This one appears to be a newer replacement.

On Demand Video
Early Mercedes Climate Control Component Location and Function - On Demand Video
$9.99

Early Mercedes Climate Control Part 1 Component Location and Function - On Demand Video

For 1977 to 1980 U.S. Model W123 W116 and W107

The first general automatic climate control was introduced in 1977 in the U.S. market. The system was installed on the 1977 to 1980 280SE, 280CE, 300D, 300CD and 300TD, the 1977 to 1980 280SE, 280SEL, 300SD, 450SE, and 450SEL included the 6.9, and the 1977 to 1980 450SL and 450SLC.

On Demand Video
Mercedes Monovalve Installation - On Demand Video
$9.99

Monovalve Heater Control Inspection - Installation - Testing - On Demand Video Manual

Covers 1981 to 1991 W123 W107 and W126 with automatic climate control panel

If you have a 1981 to 1985 W123 300D, 300CD, 280E, 280CE, 300TD or a 1981 to 1989 W107 380SL, 560SL, or a 1981 to 1991 W126 380SE/L 300SD 500SE/L 300SDL 420SE/L 300SE/L 560SE/L 380SEC 560SEC that has automatic climate control this video manual will apply. These c

$137.50

Late 123 Heater Blower Motor Assembly New

Fits U.S. Model W123 1980 to 1985

Brand New aftermarket heater blower motor. There are not many options for the 123 owners other than used. Many of the used heater motors out there are just worn out. This is a direct replacement ready to install under your dash.

$59.95

1977 to 1980 107 116 123 Chassis Climate Control Servo Bypass Conversion Kit

Auto function is lost but at least you can adjust hot and cold manually without having to spend big $$$$$

FITS THE FOLLOWING: 116, 107 and 123 Chassis up to 1980 ONLY with heater servo, including the 450SL 280SE 300SD 300D 240D. For use to convert 1977 to 1980 automatic climate control servo to a manual system.

$65.00

1982 to 1984 W123 Turbo Diesel Heater Coolant Hoses and Pipes - USED

All the hoses, metal pipes and clamps from the auxiliary water pump to the monovalve and into the firewall

Only one available as shown. Good used pipes and hoses as shown. The hoses are still soft with no evidence of cracking. The pipes are reasonably clean with no evidence they're close to rusting through. These will not fit those 1984 and 1985 diesels with the trap oxidizer.

On Demand Video
$14.99

1981 to 1991 Monovalve Climate Control Electric Water Pump Upgrade Installation Instructions - On Demand Video

How to install a newer style pump in your late W123, late R107 and W126 with ACCIII automatic climate control

In this 30-minute instructional video, Kent will explain how this new pump compares to the original, what is included in the kit and why, how to make a new plugin wiring harness, demonstrate step by step how to install this pump in a late W123 and explain the differences you will face when instal

On Demand Video
$12.99

How to Install our ACCIII Climate Control Performance Upgrade - On Demand Video

This applies to the 1981 to 1985 W123 and the 1982 to 1989 R107. Also indirectly to the W126

This an instructional "how-to" video that comes with our ACCIII performance upgrade it. It will show you how to install a protective fuse for your auxillary water pump and how to replace the rotton foam climate control hose under your dash. Total run time is 16:29.

$12.75

Late W123 Bosch Electric Auxiliary Water Pump BYPASS Kit

If the electric pump is not working and you don't want to replace it. GET IT OUT of your system!

Since the original style Bosch electric water pumps are no longer available NEW. If you need a replacement pump, you have three options. 1. Buy a used pump. 2. Buy our newer pump conversion upgrade. 3. Take your inoperable pump out of the system.

$18.95

1981 to 1985 ACCIII Climate Control Performance Enhancement Kit

Must do for 1981 to 1985 W123, W126 and R107 with automatic climate control. You won't believe what you find under your dash!!!

The parts in this little kit will do two things.  1. Protect your climate control push button panel. 2. The system will get more accurate readings from the climate control sensor on top of your dash.

$48.00

1977 to 1980 W123 Automatic Climate Control System Parts Lot

Switch panel and lots of vacuum hose parts removed from a 1979 300D - not tested parts only

Only one available as shown. Spare parts great to have if you have this early 123 auto climate control system. Look at the picture closely. What you seen is what you get. The vacuum hoses are very desireable because they are often rotted out along side the battery.

$125.00

1977 to 1980 Climate Control Servo Complete Core - USED

Not working. For rebuilding or for parts. Fits 1977 to 1980 450SL, 300SD, 450SEL, 300D, 300CD and 300TD with U.S. automatic climate control

Only one available as shown. Removed from a 1980 450S. Tested on the bench. The motor will not run. One very short crack in the upper plastic housing. Rebuild or use for parts. 

PDF
$12.95

123 116 Heater Motor Repair By Kent Bergsma - Download

How to replace the brushes on most 123 and 116 Model years 1973-1985

For most 123 chassis cars made from 1977 to 1985 and all 116 chassis sedans built from 1973 to 1980 with the Behr Heater motor. This repair guide will take you through the process of how to properly remove your heater blower motor and replace the motors two brushes.

$14.95

Engine Coolant Temperature Sensor

SINGLE pin - located on left side of cylinder head by glow plugs on 1977 to 1985 OM616 and OM617 Diesel engines.

New coolant temperature sensor for most Mercedes built from 1973 to 1993, Gasoline and Diesel models. Many gas models it is located on top of the thermostat housing. Sends signal to engine coolant temperature gauge on the dashboard. These are getting harder to get. Single pin

$125.00

Late 123 107 126 Monovalve Heater Switch Valve Solenoid Used

Will need replacement rubber diaphragm. Solenoid works good. Original Mercedes valve

For heat control on the late W123, 107 380SL 560SL 1982-1991 and W126 1981 to 1991. Good used mono-valve switch solenoid. When this goes bad the valve will not operate and if it shorts and gets overheated then a new valve will not fit into the solenoid housing.

$23.95

123 116 Chassis Heater and A/C Motor Repair Kit with Brushes

WARNING: Does not fit all motors. Will NOT fit Seimens motors found on some 123 chassis

For *most 123 chassis cars made from 1977 to 1985 and *mostl 116 chassis sedans built from 1973 to 1980. This repair guide will take you through the process of how to properly remove your heater blower motor and replace the motors two brushes. This is the most common reason for failure.

$15.95

123 116 Chassis Heater and A/C Motor Repair Manual Only - by Kent Bergsma

How to replace the brushes on most 123 and 116 Model years 1973-1985

For most 123 chassis cars made from 1977 to 1985 and all 116 chassis sedans built from 1973 to 1980 with the Behr Heater motor. This repair guide will take you through the process of how to properly remove your heater blower motor and replace the motors two brushes.