Mercedes-Benz Luxury LWB · 300 SEL

W109

Air suspension, a long wheelbase, and the 6.3.

Production
1966–1972
Built
23,550
Body
LWB sedan
Chassis
W109
Mercedes-Benz Luxury LWB (W109)

The W109 extended the W108's luxury formula on a longer wheelbase — and then rewrote the rules entirely when Erich Waxenberger installed the 600's M100 6.3-liter V8 in a formal saloon body.

Most W109s were long-wheelbase six- and eight-cylinder models — the alloy-block 300 SEL, the 2.8 that replaced it, the 3.5 V8 that outsold every other version, and the North American 4.5 — aimed at owners who wanted rear-seat space and chauffeur duty without stepping up to the hand-built W100. The 300 SEL 6.3 was something else: a Q-car capable of genuine supercar pace in a three-box suit.

Production over 1966–1972 came to 23,550 cars.

W109 interior
Cabin details of the W109, as preserved in period photography.

Every model.

5 model designations across 1966–1972 — engines, chassis codes and production figures for the W109.

ModelLata modeloweZbudowanoPodwozieSilnikSkrzynia biegówRazem
300 SEL1966–196703.1966–12.1967109.015189.9882,369
300 SEL 2.81968–197002.1968–10.1970109.016130.9812,519
300 SEL 3.51969–197211.1969–09.1972109.056116.9819,583
300 SEL 4.51971–197205.1971–10.1972109.057117.9812,553
300 SEL 6.31967–197212.1967–09.1972109.018100.9816,526

* Opublikowana liczba produkcji obejmuje każdą serię tego modelu; źródło nie rozbija jej dalej.

W109 side profile
Studio profile of the W109 — the proportions that defined this chassis.

Year by year.

The engine and equipment milestones of the long-wheelbase, air-sprung 300 SEL.

  1. 1966
    • The 300 SEL entered production with a wheelbase 100 mm longer than the W108.
    • Air suspension distinguished the W109 from conventionally sprung W108 saloons.
  2. 1968
    • The 300 SEL 2.8 replaced the earlier 3.0-liter model with a 170 hp M130 engine.
    • The 300 SEL 6.3 combined the M100 V8 and automatic transmission from the 600.
    • Broader tires and auxiliary driving lamps provided visual cues for the 6.3.
  3. 1969
    • The 300 SEL 3.5 replaced the six-cylinder 2.8 with a 200 hp M116 V8.
  4. 1971
    • The North American 300 SEL 4.5 adopted the M117 V8.
  5. 1972
    • W109 production ended in September as the W116 S-Class replaced it.
W109 rear three-quarter view
Rear three-quarter view of the W109.

Engines.

Two injected sixes and three V8s — from the alloy-block M189 to the 6.3-litre M100 — as fitted to the W109.

M189

Inline-6
  • 189.988 3.0 L · 2,996 cc

    170 PS

    125 kW · 168 KM przy 5,400 obr./min

    249 N·m

    184 lb·ft przy 4,000 obr./min

M130

Inline-6
  • 130.981 2.8 L · 2,778 cc

    170 PS

    125 kW · 168 KM przy 5,750 obr./min

    240 N·m

    177 lb·ft przy 4,500 obr./min

M116

V8
  • 116.981 3.5 L · 3,499 cc

    200 PS

    147 kW · 197 KM przy 5,800 obr./min

    286 N·m

    211 lb·ft przy 4,000 obr./min

M117

V8
  • 117.981 4.5 L · 4,520 cc

    198 PS

    146 kW · 195 KM przy 4,500 obr./min

    358 N·m

    264 lb·ft przy 3,000 obr./min

M100

V8
  • 100.981 6.3 L · 6,332 cc

    250 PS

    184 kW · 247 KM przy 4,000 obr./min

    500 N·m

    369 lb·ft przy 2,800 obr./min