Mercedes Benz 107

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Modifications to the U.S. Mercedes R107 Series from 1972-1989



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What Model is Your Car? Decode Your Vin#

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Index of Production Numbers

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Production Modification Enhancements

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Chassis and Engine Specifications

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Technical Specifications

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Mercedes Paint Codes

R107 Production Modifications

Year

Model

HP

 

1972

350SL

4.5

195

107 introduced to U.S.

4.5-liter, Iron-block V8 117.982. Bosch electronic fuel injection.

3-speed automatic

Power-assisted steering, air conditioning, hard and soft-tops were standard.

Chassis: 107.044

1973

450SL

"

Rebadged to 450SL

1974

 

190

Addition of 5-mph bumper

1975

"

180

Addition of catalytic converters (in engine compartment).

1976

"

"

117.985

Addition of cruise control, transistorized ignition, hydraulic valve adjusters

Switch to Bosch Jetronic (CIS) fuel injection. K-Jetronic

1977

"

"

Catalytic convertors moved downstream. Catalytic converters moved back beneath the floor

Climate-control system introduced (Type 1)

Battery moved to trunk

1980

"

160

3-way catalytic converter introduced, final drive ratio reduced

1981

380SL

155

380SL introduced. Chassis: 107.045

116 3.8 liter  all-alloy V-8 116.960 V8

4-speed automatic.

Electric window lifts are standard.

The hood was made of aluminum and an "economy" dial was added.

1982

"

"

Type II auto climate control

1983

"

"

116.962

Recalibrated engine and transmission for improved performance and fuel economy.

1984

"

"

Switch from single-row to twin-row timing chain.

1985

"

"

ABS became standard; driver-side airbag was optional.

1986

560SL

227

Chassis: 107.048

- 5.6-litter, all-alloy V-8 (117.967) and 4-speed transmission into U.S. market.

Limited-slip differential, front air dam, leather upholstery, anti-theft alarm are standard.

new-style 7x15in alloy wheels.

1988

"

"

 

1989

   

Last year of 107 production.

R107 Production Enhancements

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The springs have a different spring rate, front and rear.

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The front stabilizer bar has a 26mm diameter instead of 25mm diameter.

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The shock absorbers are shorter and have a harder rate.

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An additional polyurethane bottoming spring has been added.

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Some model 124 front end parts are used on the front end - the following parts are redesigned

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Front axle carrier, lower and upper control arms, Steering knuckle,

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Steering knuckle arm, front wheel hub with bearing.

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The front axle carrier has a newly modified contour, can be used on older model 107s.

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Limited slip differential

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The rear axle carrier mount has been offset by 124mm to the left.

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The rear carrier front rubber mounts are not interchangeable, marked with L and R, have different stiffness's.

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The rear axle center is now elastically mounted to the rear carrier both at the front and rear mounts.

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The rear axle shafts are provided with CV joints similar to model 126 coupe.

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New light alloy wheels similar to model 201, new mounting screws.

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New propeller shaft center mount, similar to model 124, not interchangeable with older 107s.

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Four piston brake calipers on front.

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Light alloy Master cylinder.

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Double diaphragm brake booster.

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Redesigned steering gear, designation 765.707 (LS80), NOT interchangeable with old unit, reduced travel for redesigned front end. Code letter R stamped into the housing. (The 560's turning circle is not as short as previous cars, less "sensitive" steering.

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Power steering pump relief pressure changed to 82 +-5 bar.

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Sheet metal floor under fuel tank changed, mounting positions of tank and filler neck changed.

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Outside Temperature indicator changed from Celsius to Fahrenheit.

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Exterior lamp failure indicator added.

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Fuses and electrical feeds changed.

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BODY SHEET METAL CHANGES: Radiator mount changed, hood changed, firewall changed, side-member connecting point front right changed, A-pillars changed, doors changed, B-pillars changed, main floor changed, rear floor changed, cross-member under the driver seat changed, sheet metal shrouds changed, various stiffeners and small parts changed.

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Door handles changed, similar to model 126.

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Door lock and striker changed.

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Central locking system changed, electric vacuum pump similar to models 126 and 201.

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Fuel tank flap actuating element and guide bushing changed.

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Outside heated rear view mirrors.

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Rear high mounted stop lamp added.

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New Grand Prix radio - larger display indicator with tone setting and more sensitivity - three levels, but returns to least sensitive when turned off.

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Front bumper and spoiler.

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Front bumper inner fender liners added.

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Front seats changed to include lateral

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Hood- a depression was added to the hood reinforcement to clear new brake booster, previous hood will not fit on car.

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Mercedes 107 Roadster

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