Factory Specifications       
(and lesser known factoids)          

Note: Numbers in brackets [#] indicate the page number of the quotation.  Emphasis added by the excerpter.

 Sources: Model Year 1972  Passenger Cars USA Version and 350SL Owner's Manual

 Vehicle Number Code

 107 (chassis model)
 044 (two seat roadster body with 4.5 liter engine)
 1 (left hand drive)
 2 (automatic transmission)
 ###### (number in the series)

 Dimensions and Curb Weight

 Length: 4370mm (14' 4.05")
 Width: 1790mm (5' 10.47")
 Wheelbase: 2460mm (96.85")
 Curb Weight: 1682kg (3708 lbs)


 Top speed: 125mph (96mph in 2nd, 60mph in 1st)
 0-100km/h (0-62mph): 9.0 seconds (+/- 7%) with two persons aboard
 Fuel consumption: 11-17mpg
 Oil consumption: 236-392 miles per quart

 Engine (model M117, design 117.982)

 4520cc (92mm bore, 85mm stroke)
 8:1 compression ratio
 Idle speed 700-800rpm, 5800rpm redline
 230 gross HP* according to SAE

 Transmission Gear Ratios

 Drive (uses 1st, 2nd, and 3rd gears): 1:1
 Slope (uses 1st and 2nd gears): 1.46:1
 Load (uses 1st gear only): 2.31:1
 Reverse: 1.84:1

 Rear End Ratio



 6 J x 14 H2


 205/70VR14, belted tube type
 (Dunlop SpCB57F or Pirelli CN36)

 Tire Pressures (cold)

 Front: 30psi (up to 110mph) 33psi (max.speed)
 Rear: 35psi (up to 110mph), 38psi (max.speed)
 (NOTE: all pressures above will be 3psi higher after city
  travel and 7psi higher after highway travel)

 Fuel Type and Capacity (including reserve)

 Regular (ROZ 91) 
 90 liters, including 13 liters liter reserve (23.775 US gallons, including 3.434 gallons reserve)

 Engine Oil Capacity

 7.5 liters in crankcase plus .75 liter in oil filter plus .4 liter in oil cooler (9.14 quarts total)

 Transmission Fluid Capacity

 8.35 quarts at fluid change

 Coolant Capacity

 15 liters (3.96 US gallons)


 Front: 0 (+10' to -20')
 Rear: Established by control arm position

 Toe-in (rolled)

 Front: 0 20' (+10' to -10')
 Rear: 0 10' (+20' to -10')


 3 15' (+20' to -20')

 Electrical (nominal 12v system)

 Battery: 66Ah (per "MY1972...") or 88Ah (per "Owner's...")
 Alternator: 14v, 55A

   "The 4.5 liter Engine which was converted from the 3.5 liter Engine is installed in this Model." [6]   "The transmission model W3A040 has 3 gears with 2 planetary gear sets and a torque converter." [8]   "A limited-slip differential is optional." [8]
   " . . . the 350SL is equipped with a unitized frame-floor body design with closed center members and welded steel floor panels.  There are no lubrication points on the entire chassis . . . ." [8]
   "The front and rear suspension are designed with steel coil springs and progressively acting rubber springs, torsion bar stabilizers, and dual-action hydraulic-telescopic shock absorbers with an additional gas chamber (gas pressure shocks)." [9]
   "Model 350SL uses the newly designed steering LS090, which is of the recirculating-ball type with gear segment.  The ratio is slightly more direct than on the previous type steering LS075." [9]
   "The front brakes now have 22mm wide ventilated discs resulting in wider calipers.  The brake discs are asymmetrical, the outside surface is 8mm thick and the inside surface 6mm.  The rear brakes were not changed . . . ." [10]

   " . . . 350SL is 85mm longer, 30mm wider, and 20mm lower with roadster top (15mm with coupe top), as the previous 280SL. . . . the hood, the trunk, and both doors are now also made from steel, unlike those of the 280SL. . . . the windshield posts are more than 50% stronger compared to those of the 280SL." [11]
   "The seats . . . are adjustable on the driver's side not only forward and backward, but also by 30mm in height in the rear, or the driver's side through eccentric controls in 3 positions and on the passenger side through screws in 2 positions." [12]
   "Heating and ventilation . . . is not affected by dynamic air pressure; therefore the speed of the vehicle does not affect the volume of air passage . . . . This was made possible by arrangements of the air intake louvers in a zone of low dynamic pressure to the left and right in front of the windshield instead of in the middle. . . . The heater is controlled by air mixing flaps . . . . The advantage of this type of heater control (by air mixture) is immediate response to any change in setting. . . . An air conditioning system integrated with the heating and ventilation system is standard equipment on model 350SL. . . . With the air conditioner in operation, the temperature of the exhaust air may be individually controlled for either side of the car by adding heat in measured quantity." [13]
   "Careful attention has been devoted to corrosion protection of the body.  In addition to the usual preventative measures (phosphating, passivation, use of zinc paint, gravel protection, PVC coating, and wax covering), wax is sprayed into any susceptible hollow areas." [14]   

*To appreciate this distinction see "Definition of Horsepower" (sorry about their popup ads)