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Engines
1960s
Germany

Mercedes-Benz M 115 petrol engine

Mercedes Benz
Mercedes-Benz W 115  W 123
M 115
Manufacturer: Daimler Benz
Production period: 1968-1985
Style: Four-cylinder inline engine
displacement: 2.0 liters 
2.2 liters 
2.3 liters
Previous model: M 121
Successor: M 102

The M 115 Daimler -Benz designated a series of four cylinder inline engines .

The Mercedes-Benz 200/220 / 230.4 (W 115 "stroke-eight", to 1976) or 200/230 W 123 (from 1976), the SUV 230 G (W 460, 1979 to 1985), and the Mercedes-Benz vans 408/409 T 2 "Transporter" from 1968 and 208/308 T 1 "Transporter" from 1977 all had petrol engines with displacements of 2.0, 2.2 and 2.3 litres.

The engine is a slightly modified successor to the M 121, with a countercurrent aluminium alloy cylinder head and a five-bearing crankshaft in a cast iron engine block. The overhead camshaft (overhead camshaft) is driven by a roller chain and activated by two valves per cylinder through rocker arms. The M 115 was superseded by the newly developed M 102 with Crossflow cylinder head in the Mercedes 200/230 of the W 123 series in 1980.

Related items
Mercedes petrol engines | Mercedes S4 Engines | Petrol Engines | Straight-4 Engines

Technical

Technical
  • Mercedes-Benz Model: 200-230 (115) 2.0 200 Engine code: 115.923 (1968-1975)

    Output: 71 (95) @4800rpm
    No. of cylinders Type 4/OHC
    Capacity 1988cc
    Compression ratio 9.0:1
    Suitable for unleaded petrol No
    Fuel system Make Stromberg Type 175 CD Carb-VV
    Firing order 1-3-4-2
    Distributor Make Bosch No.0 231 170 138
    Distributor Contact breaker gap 0.4mm
    Minimum starting voltage 10 V
    Maximum cranking amps 149-182A
    Regulated voltage 13.9-14.9V

    Mercedes-Benz Model: 200-230 (115) 2.2 220 Engine code: 115.920 (1968-1973)

    Output: 78 (105) @4800rpm

    No. of cylinders Type 4/OHC
    Capacity 2197 cc
    Compression ratio 9.0:1
    Suitable for unleaded petrol No
    Fuel system Make Stromberg Type 175 CD Carb-VV
    Firing order 1-3-4-2

    Technical data 

    Type stroke capacity power
    M 115 V 20 83.6 mm 1988 cm 3 94/95 hp
    M 115 V 22 92.4 mm 2197 cm 3 105 hp
    M 115 V 23 83.6 mm 2307 cm 3 85/109/120 hp

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