Engine oil capacity
8 L
- Oil change with filter
Mercedes-Benz S420 W1404.2 litre · 205 kW
Jan 1993 – Oct 1998 · Sedan · Petrol · 140.042, 140.043
Oil, coolant and a checklist for your next service.
Other S420 versions
Oil & coolant
Coolant capacity
16.5 L
- Without air conditioning
- Total system capacity
- With air conditioning
Engine oil specification
Not available for this version
Coolant specification
Not available for this version
Do not mix different coolant types. Let the cooling system cool before opening the reservoir. Check the level after filling. The capacity shown is not a top-up amount.
Engine & gearbox
Engine code
M 119.981 / M 119.971
- 4,196 cc · 8 cylinders · 32 valves
- Naturally aspirated · intake manifold injection/ carburettor
- Bore × stroke 92 × 78.9 mm
- Compression 11:1
Drive
Rear-wheel drive
Automatic gearbox fluid
7.7 L
- 722.3
- Approval MB 236.6 or MB 236.9
Automatic gearbox fluid
MB 236.14 or MB 236.12
- 5G-TRONIC (722.6)
Brake fluid
DOT 4
The gearbox figure is the quantity listed for the gearbox. A fluid change usually takes less, so fill to the correct level rather than to the figure. Two gearboxes are listed for this car, so check which one yours has before buying fluid.
Fluid capacities for Australian models
| Australian model | Automatic gearbox | Differential |
|---|---|---|
| S420 (W140), 4.2 Litre V8 DOHC 32V Eng., Automatic (1993-1999) | 7.7 L (dry fill) | 1.3 L (refill) |
From the FUCHS lubricant guide for Australian models. A dry fill is the quantity for an empty unit; a fluid change takes less. A refill is the quantity for a normal fluid change.
When to service & replace parts
For jobs with both a time and a kilometre limit, use whichever comes first.
Replacement intervals
| Part or fluid | When to replace it |
|---|---|
| Brake fluid | Every 2 years |
| Fuel filter | More than 80,000 km or 4 years since last change |
Service checklist
A service checklist is not available for this version.
Wiper blade sizes & fittings
Right-hand driveCheck your vehicle’s build month and arm fitting against the rows below.
| Build date | Blade sizes | Attachment / clip | Matching blades |
|---|---|---|---|
| Mar 1993 - Sep 1998 | Driver 650 mm / passenger 650 mm | HBG1.2 (arm code 1) | Bosch AR65N / AR65N |
For right-hand-drive vehicles. Match the build month, existing arm connector and any fitting conditions before ordering.
Find wiper bladesBrake discs
| Axle | Disc size | Type | Minimum thickness | Applies to |
|---|---|---|---|---|
| Front | 320 × 30 mm | Vented | 27.4 mm | All versions |
| Rear | 300 × 22 mm | Vented | 19.4 mm | All versions |
Size is diameter × thickness. Replace a disc before it wears to its minimum thickness, which is also marked on the disc itself. Where two sizes are listed for one axle, the car's equipment decides which it has: measure the disc to be sure.
Wheels & tyres
Stud pattern
5 × 112
- Number of bolts × circle diameter (mm)
Wheel bolts
M14 × 1.5
- 17 mm hex head
Bulbs
| Light | Bulb | Applies to |
|---|---|---|
| Headlight (low beam) | H7 · 55 W | Halogen |
| Headlight (low beam) | D2R xenon · 35 W | Xenon |
| Front fog light | H1 · 55 W | — |
| Indicator, front | PY21W · 21 W | — |
| Indicator, rear | P21W · 21 W | — |
| Parking / position light | W5W · 5 W | — |
| Brake / tail light | P21/5W | — |
| Brake light | P21W · 21 W | — |
| Third brake light | P21W · 21 W | — |
| Reverse light | P21W · 21 W | — |
| Rear fog light | P21W · 21 W | — |
| Rear fog / tail light | P21/4W | — |
| Number plate light | C5W · 5 W | — |
Check the bulb you take out before buying a new one. Halogen, xenon and LED headlights use different bulbs, and LED lights usually have no bulb to replace.
Battery
| Case size (L × W × H) | Capacity | Cold cranking | Share of listings |
|---|---|---|---|
| 353 × 175 × 190 mm | 95 Ah | 850 A (EN) | 76% |
The main battery sizes listed for this car, most common first. The right one depends on the car's equipment, such as start-stop, so match the size, capacity and type printed on the battery you are replacing.
Spark plugs
Number
8
Thread
M14 × 1.25
Tightening torque
28 Nm
Engine, gearbox, brake, wheel, tyre, bulb, battery and plug details are taken from the parts makers' listings for this exact vehicle. Where those listings disagree, only the clear majority is shown.
Parts for this car
11 in stockEvery part we stock that is listed to fit the S420 W140 4.2 litre · 205 kW. Build date and factory options can still affect fitment, so check the fitment table on a part before you order.
Brakes1 part
-
In stock$12.00
Engine & cooling2 parts
-
In stock$29.00
-
In stock$38.00
Suspension & steering1 part
-
In stock$55.00
Body & interior7 parts
-
In stock$1.70
-
In stock$1.60
-
In stock$1.80
-
In stock$4.40
-
In stock$1.50
-
In stock$1.00
-
In stock$2.20
Keep a record of this service
Print the specifications and checklist with your registration, VIN, mileage and the products you used.