Belt tensioner multi-belt automatic - Mercedes R107 R129 W124 C124 S124 A124 W126 W140 W201 W202 W463

Description

Belt tensioner multi-belt automatic - Mercedes R107 R129 W124 C124 S124 A124 W126 W140 W201 W202 W463 - M103 M104 engine

Automatic belt tensioner for the serpentine belt of various Mercedes models with M103 and M104 petrol engines.

The belt tensioner ensures that the serpentine belt remains under the correct tension while the engine is running. A worn or defective belt tensioner can lead to unusual noises, vibrations, rough belt operation, or insufficient tension on the serpentine belt.

With insufficient belt tension, the components driven by the serpentine belt may receive insufficient power. This can result in, among other things, reduced engine cooling, insufficient charging of the alternator, and reduced power steering performance.

Suitable for Mercedes models

R107

• 300 SL – 107.041 – M103.982 – 09-1985 to 08-1989 – 132 kW – 180 hp
• 300 SL – 107.041 – M103.982 – 09-1985 to 08-1989 – 138 kW – 188 hp

R129

• 300 SL – 129.060 – M103.984 – 03-1989 to 08-1993 – 140 kW – 190 hp
• 300 SL-24 – 129.061 – M104.981 – 03-1989 to 07-1993 – 170 kW – 231 hp
• SL 280 – 129.058 – M104.943 – 08-1993 to 10-2001 – 142 kW – 193 hp
• SL 320 – 129.063 – M104.991 – 09-1993 to 10-2001 – 170 kW – 231 hp

W124

• 260 E – 124.026 – M103.940 – 09-1985 to 08-1992 – 118 kW – 160 hp
• 260 E – 124.026 – M103.940 – 09-1985 to 12-1989 – 122 kW – 166 hp
• 260 E 4MATIC – 124.226 – M103.943 – 09-1986 to 08-1992 – 118 kW – 160 hp
• 280 E – 124.028 – M104.942 – 10-1992 to 06-1993 – 145 kW – 197 hp
• E 280 – 124.028, 124.029 – M104.942 – 06-1993 to 06-1995 – 142 to 145 kW – 193 to 197 hp
• 300 E – 124.030 – M103.980, M103.983 – 01-1985 to 08-1992 – 132 to 138 kW – 180 to 188 hp
• 300 E 4MATIC – 124.230 – M103.983, M103.985 – 09-1986 to 06-1993 – 132 to 138 kW – 180 to 188 hp
• 300 E-24 – 124.031 – M104.980 – 09-1988 to 08-1992 – 162 kW – 220 hp
• 320 E – 124.032 – M104.992 – 10-1992 to 06-1993 – 162 kW – 220 hp
• E 320 – 124.032 – M104.992 – 06-1993 to 06-1995 – 162 kW – 220 hp

C124

• 300 CE – 124.050 – M103.983 – 03-1987 to 05-1993 – 132 to 138 kW – 180 to 188 hp
• 300 CE-24 – 124.051 – M104.980 – 09-1989 to 12-1992 – 162 to 170 kW – 220 to 231 hp
• 320 CE – 124.052 – M104.992 – 10-1992 to 05-1993 – 162 kW – 220 hp
• E 320 – 124.052 – M104.992 – 06-1993 to 06-1997 – 162 kW – 220 hp
• E 36 AMG – 124.052 – M104.992 AMG 3.6 – 05-1994 to 06-1997 – 200 kW – 272 hp

S124

• 260 TE – 124.007 – M103.940 – 09-1989 to 08-1992 – 118 kW – 160 hp
• 280 TE – 124.088 – M104.942 – 10-1992 to 06-1993 – 145 kW – 197 hp
• E 280 T – 124,088 – M104,942 – 06-1993 to 06-1996 – 142 to 145 kW – 193 to 197 hp
• 300 TE – 124,090 – M103,983 – 01-1986 to 08-1992 – 132 to 138 kW – 180 to 188 hp
• 300 TE 4MATIC – 124,290 – M103,985 – 09-1986 to 06-1993 – 132 kW – 180 hp
• E 300 T 4MATIC – 124.290 – M103.985 – 06/1993 to 06/1996 – 132 kW – 180 hp
• 300 TE-24 – 124.091 – M104.980 – 09-1989 to 08-1992 – 162 kW – 220 hp
• 320 TE – 124.092 – M104.992 – 10-1992 to 06-1993 – 162 kW – 220 hp
• E 320 T – 124.092 – M104.992 – 06-1993 to 06-1996 – 162 kW – 220 hp
• E 36 T AMG – 124.092 – M104.992 AMG 3.6 – 05/1994 to 06/1996 – 200 kW – 272 hp

A124

• 300 CE-24 – 124.061 – M104.980 – 04-1992 to 06-1993 – 162 to 170 kW – 220 to 231 hp
• E 320 – 124.066 – M104.992 – 06-1993 to 03-1998 – 162 kW – 220 hp
• E 36 AMG – 124.066 – M104.992 AMG 3.6 – 05-1994 to 03-1998 – 200 kW – 272 hp

W126

• 260 SE – 126.020 – M103.941 – 09-1985 to 06-1991 – 118 to 122 kW – 160 to 166 hp
• 300 SE – 300 SEL – 126.024, 126.025 – M103.981 – 09-1985 to 06-1991 – 132 to 138 kW – 180 to 188 hp

W140

• 300 SE 2.8 – 140.028 – M104.944 – 01-1993 to 10-1998 – 145 kW – 197 hp
• S 280 – 140.028 – M104.944 – 02-1993 to 10-1998 – 142 kW – 193 hp
• 300 SE – 300 SEL – S 320 – 140.032, 140.033 – M104.990, M104.994 – 03-1991 to 10-1998 – 170 kW – 231 hp

W201

• 190 E 2.6 – 201.029 – M103.942 – 09-1986 to 08-1993 – 118 kW – 160 hp
• 190 E 2.6 – 201.029 – M103.942 – 09-1986 to 12-1989 – 122 kW – 166 hp

W202

• C 280 – 202.028 – M104.941 – 05-1993 to 05-2000 – 142 kW – 193 hp
• C 36 AMG – 202,028 – M104,941 AMG 3.6 – 05-1994 to 05-2000 – 206 kW – 280 hp

W463 G-Class

• 300 GE – 463.227, 463.228 – M103.987 – 09-1989 to 08-1993 – 125 kW – 170 hp
• G 300 – 463.227, 463.228 – M103.987 – 06-1993 to 08-1997 – 125 kW – 170 hp

W463 G-Class Convertible

• 300 GE – 463.207 – M103.987 – 09-1989 to 09-1997 – 125 kW – 170 hp

Suitable for Mercedes engines

M103 engine

• M103.940
• M103.941
• M103.942
• M103.943
• M103980
• M103.981
• M103.982
• M103.983
• M103.984
• M103.985
• M103987

M104 engine

• M104.941
• M104.942
• M104.943
• M104.944
• M104.980
• M104.981
• M104.990
• M104.991
• M104.992
• M104.994

Specifications

1. Part: automatic multi-belt tensioner
2. Business type: automatic
3. Housing material: aluminium
4. Width: 31.5 mm
5. Wheel contact patch width: 25.5 mm
6. Outer diameter of tensioner pulley: 70 mm
7. Tension roller material: plastic
8. Mercedes OEM number: 1032000870
9. Also listed as: A1032000870

Additional information

1. Automatically ensures the correct tension of the serpentine belt.
2. Compensates for changes in belt tension during use.
3. A worn or defective belt tensioner can cause unusual noises, vibrations, or irregular belt operation.
4. Insufficient tension on the serpentine belt can lead to reduced engine cooling, insufficient charging of the alternator, and reduced power steering performance.
5. When replacing it, also check the serpentine belt for cracks, drying out, wear, and damage.
6. Also check the other guide and tension pulleys for play, bearing noise, and irregular operation.
7. In case of irregular belt routing, always check the cause and do not replace only the serpentine belt.
8. Before installation, check whether the design and dimensions match the existing belt tensioner.

Special tools for disassembly

For disassembling and assembling the viscous coupling, you need special tools necessary. With the right tools, the viscous coupling can be removed without unnecessary damage to the fan, pulley, or surrounding parts.

You can also find the suitable tools for this in our webshop.

Always check before purchase and installation whether the part is suitable and equivalent based on photos, description, and specifications; installed or used parts cannot be returned.