Mercedes-Benz B250 4MATIC W2462.0 litre · 155 kW

Aug 2014 – Dec 2018 · Hatchback · Petrol · 246.246

Oil, coolant and a checklist for your next service.

Silver Mercedes-Benz B-Class W246 hatchback, generated side-profile illustration

Oil & coolant

Engine oil capacity

5.6 L

  • Oil change with filter

Coolant capacity

7.8 L

  • Service refill

Engine oil specification

MB 229.5

Coolant specification

MB 325.6 or MB 326.6

  • MB 325.6: concentrate, dilute before use
  • MB 326.6: premixed, do not add water

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 270.920

  • 1,991 cc · 4 cylinders · 16 valves
  • Turbocharged · direct injection
  • Bore × stroke 83 × 92 mm

Drive

All-wheel drive

Brake fluid

DOT 4

When to service & replace parts

Replacement intervals

Part or fluidWhen to replace it
Engine oil and oil filterAt each Service A and Service B

Replace according to wear

Brake pads, discs, tyres and wipers do not share a fixed replacement mileage.

Brake pads and discs

Check pad thickness and disc condition. Replace when they reach the wear limit.

Wiper blades

Replace blades that leave streaks, skip across the glass or have damaged rubber.

Tyres

Check tread, damage and cracking, and correct the pressures.

Service checklist

Service A and Service B alternate, normally once a year. Follow the time or kilometres remaining on your dashboard, whichever comes first. Extra work can fall due with either service.

Service A

When Service A is due on the dashboard

Replace

Check & maintain

Service B

When Service B is due on the dashboard

Replace

Check & maintain

Tick off jobs as you go. Your ticks are saved on this device.

Brake discs

AxleDisc sizeTypeMinimum thicknessApplies to
Front 320 × 30 mm Vented 28 mm All versions
Rear 295 × 10 mm Solid 8.3 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

Factory wheel and tyre sizes

WheelTyre sizeRimFitted to
17-inch 225/45 R17Mercedes-approved (MO) tyres listed 7.5J × 17, offset ET52.5 Front and rear
17-inch 205/50 R17 6.5J × 17, offset ET49 Front and rear
18-inch 225/40 R18Mercedes-approved (MO) tyres listed 7.5J × 18, offset ET52 Front and rear

Sizes the parts catalogue lists for this car. A "Rear" row is the wider rear tyre on cars with different sizes front and rear. Your tyre placard, on the driver's door pillar, gives the sizes and pressures for the wheels your car was built with.

Bulbs

LightBulbApplies to
Headlight (low beam)H7 · 55 WHalogen
Headlight (low beam)D1S xenon · 35 WBi-Xenon
High beamH7 · 55 WHalogen
High beamD1S xenon · 35 WBi-Xenon
Front fog lightH11 · 55 WWith front fog light
Indicator, frontPY21W · 21 W—
Indicator, rearPY21W · 21 W—
Daytime running lightH7 · 55 W—
Parking / position lightW5W · 5 WHalogen
Brake / tail lightP21W · 21 W—
Brake lightP21W · 21 WWith LED tail lights
Reverse lightW16W · 16 W—
Rear fog lightP21W · 21 WWithout LED tail lights
Rear fog lightH21W · 21 WWith LED tail lights
Number plate lightC5W · 5 W—
Interior lightC5W · 5 W—
Door lightW5W · 5 W—
Boot lightW5W · 5 W—
Clearance lightW5W · 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)CapacityCold crankingShare of listings
278 × 175 × 190 mm 70 Ah 760 A (EN) 59%
315 × 175 × 190 mm 80 Ah 800 A (EN) 23%

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

4

Thread

M12 × 1.25

Electrode gap

0.7 mm

Tightening torque

23 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

43 in stock

Every part we stock that is listed to fit the B250 4MATIC W246 2.0 litre · 155 kW. Build date and factory options can still affect fitment, so check the fitment table on a part before you order.

Brakes10 parts
Filters3 parts
Wipers2 parts
Engine & cooling10 parts
Suspension & steering12 parts
Transmission & driveline1 part
Electrical1 part
Exhaust1 part
Body & interior3 parts

Keep a record of this service

Print the specifications and checklist with your registration, VIN, mileage and the products you used.

Prepare service record

Your printable service record

Add your details, or leave the fields blank to fill in by hand. Your checklist ticks are included, and longer notes get an extra page. Details stay on this device.

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