Page 175 of 302

171 Automatic transmission
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Upshift through 2nd gear only. For driving in 
mountainous regions or under extreme operating 
conditions. This gear selection will allow use of 
the engine’s braking power when descending 
steep grades.
Use this position, which makes maximum use of 
the engine’s braking effect, while descending 
very steep or lengthy downgrades and only at 
speeds below 40 mph (60 km/h).
Important!
With selector lever in position “D”, “4” or “3”, upshifting 
from 1st to 2nd to 3rd gear is delayed depending on 
vehicle speed and engine temperature. This allows the 
catalytic converter to heat up more q uickly to operating 
temperatures.
During the brief warm-up period this delayed upshift 
and increased engine noise might be perceived as a 
malfunction. However, neither the engine nor 
transmission are negatively affected by this mode of 
operation.
The delayed upshift is effective with vehicle speeds 
below 31 mph (50 km/h) at partial throttle and engine 
temperatures below 95°F (35°C).To avoid overrevving the engine when the selector lever 
is moved to a lower driving range, the transmission will 
not shift to a lower gear, if the engine’s speed limit 
would be exceeded. In this case there will be no 
downshift, even when the vehicle speed reaches the 
engine’s speed limit of that gear, e.g. by applying the 
service brakes. Continue driving in the usual manner. 
The transmission will then shift down automatically.
To prevent the engine from laboring at low RPM when 
driving uphill gradients or with your vehicle heavily 
loaded, the automatic transmission will downshift when 
necessary to maintain engine RPM within the best 
torque range.
Wa r n i n g !
On slippery road surfaces, never downshift in order 
to obtain braking action. This could result in drive 
wheel slip and reduced vehicle control. Your 
vehicle’ s ABS will not prevent this type of loss of 
control. 
     
        
        Page 196 of 302

192 Driving systems
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Electronic stability program (ESP)
The ESP enhances directional control and reduces 
driving wheel spin of the vehicle under various driving 
conditions.
Over/understeering of the vehicle is counteracted by 
applying brakes to the appropriate wheel to create a 
countervailing vehicle movement. Engine torque is also 
limited. The ESP warning lamp, located in the 
speedometer dial, starts to flash when ESP is in 
operation.Important!
If the ESP warning lampv flashes:
• During take-off apply as little throttle as possible.
• While driving ease up on the accelerator.
• Adapt your speed and driving to the prevailing road 
conditions.
• Do not switch off the ESP.
Caution!
If the vehicle is towed with the front axle raised 
(see page 241), the engine must be shut off (key in 
steering lock position 0 or 1). Otherwise, the ESP will 
immediately be engaged and will apply the rear wheel 
brakes.
Wa r n i n g !
ESP cannot prevent the natural laws of physics 
from acting on the vehicle, nor can it increase the 
traction afforded. The ESP cannot prevent 
accidents, including those resulting from excessive 
speed in turns, or aquaplaning. Only a safe, 
attentive, and skillful driver can prevent accidents. 
The capabilities of an ESP equipped vehicle must 
never be exploited in a reckless or dangerous 
manner which could jeopardize the user’s safety or 
the safety of others. 
     
        
        Page 198 of 302

194 Driving systems
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
ESP control switch
ESP control switch located in center console.
To improve the vehicle’s traction when driving with 
snow chains, or starting off in deep snow, sand or gravel, 
switch off ESP by pressing the upper half of the ESP 
switch. The ESP warning lampv, located in the 
speedometer dial, is continuously illuminated.With the ESP system switched off, the engine torque 
reduction feature is cancelled. Therefore, the enhanced 
vehicle stability offered by ESP is unavailable.
Adapt your speed and driving to the prevailing road 
conditions.
A portion of the ESP system remains active, even with 
the switch in the OFF position.
If one drive wheel loses traction and begins to spin, the 
brake is applied until the wheel regains sufficient 
traction. The traction control engages at vehicle speeds 
up to approxim ately 24 mph (40 km /h ), a nd  sw itches of f  
at 50 mph (80 km/h).
Wa r n i n g !
When the ESP warning lamp is illuminated 
continuously, the ESP is switched off. Adapt your speed and driving to the prevailing road 
conditions. 
     
        
        Page 231 of 302

227 Tires, Wheels
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index Wheels
Replace rims or tires with the same designation, 
manufacturer and type as shown on the original part. 
See your authorized Mercedes-Benz Center for further 
information.
See your authorized Mercedes-Benz Center for 
information on tested and recommended rims and tires 
for summer and winter operation. They can also offer 
advice concerning tire service and purchase.Tire replacement
Front and rear tires should be replaced in sets. 
Furthermore - in the event of tire replacement - the 
spare wheel (except Sport Package version), if possible, 
should be used on the rear axle. Rims and tires must be 
of the correct size and type. For dimensions, see 
page 274.
We recommend that you break in new tires for approx. 
60 miles (100 km) at moderate speed.
It is imperative that the wheel mounting bolts be 
fastened to a tightening torque of 80 ft.lb. (110 Nm) 
whenever wheels are mounted.
For rim and tire specifications, see page 274. 
     
        
        Page 238 of 302

234 Tires, Wheels
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index
13. Lower vehicle. Remove jack and insert jack tube 
cover.
Before storing the jack, the jack arm must be 
lowered almost to the base of the jack. 
Store the spare wheel first and then the vehicle jack.
14. Using the wrench, tighten the five bolts evenly, 
following the sequence illustrated, until all bolts are 
tight.
Observe a tightening torque of 80 ft.lb. (110 Nm). 
15. Ensure proper tire pressure.
16. Depress wheel change switch for level control. The 
indicator lamp in the switch and the ADS 
malfunction indicator lamp will go out.
Wa r n i n g !
Always replace wheel bolts that are damaged or 
rusted.Never apply oil or grease to wheel bolts.Damaged wheel hub threads should be repaired 
immediately.Incorrect mounting bolts or improperly tightened 
mounting bolts can cause the wheel to come off. 
This could cause an accident. Be sure to use the 
correct mounting bolts. 
     
        
        Page 280 of 302
276 Technical data
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index
Electrical system Weights
(see certification tag)
Main dimensions Generator (alternator) 14 V/150 A
Battery 12V/100 Ah
Starter motor 
SL 500:
SL 600:12 V / 1. 7  k W
12V/2.2 kW
Spark plugs 
SL 500:
SL 600:
Electrode gap
Tightening torqueBosch F 8 DPER
Beru 14 FGH 8 DPUR X 2
Beru 14 FGH 8 DPUR X 2
0.039 in (1.0 mm)
15 – 22 ft.lb (20 – 30 Nm)Hardtop load max. 66 lb (30 kg)
Trunk load max. 220 lb (100 kg)
Overall vehicle length 177.1 in (4499 mm)
O ve r a l l  v e h i c l e  w i d t h 71.3  in  ( 1812  m m )
Overall height 51.3 in (1303 mm)
Wheel base 99.0 in (2515 mm)
Track, front 60.4 in (1535 mm)
Track, rear 60.0 in (1523 mm)