Engine

Engine Components Overview

11 – Cabin Fresh Air Intake
12 – Engine Air Filter
13 – Battery Jump Terminal Positive
14 – Brake Fluid Reservoir
15 – Battery Jump Terminal Negative
16 – Windshield Washer Fluid Reservoir
17 – Oil Fil Cap
18 – Radiator Coolant Expansion Reservoir
19 – Diesel Exhaust Fluid

TIP#207: Degas Tank (18) is part of the pressurized cooling system and is designed to allow air bubbles to be removed from the cooling circuit. The pressure cap is also the fill point.
WARNING: Never fill above the indicated fill line on the tank. This reduces the expansion area and can lead to inaccurate level readings.

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21 – Voltage Regulator for RV Second Alternator
22 – Windshield Wiper Motor
23 – Engine Computer
24 – Anti-Lock Brake Servo
25 – Engine Oil Filter (MB Part# 642-180-00-09)
(V6 Diesel oil filter wrench 84mm-14 flats. Older engines use 74-14)
26 – Engine Gas Recirculation valve (EGR) see below.
27 – Oil Dipstick (purchased from MB Part# 274-010-74-12 – $30 Dealer)
28 – Fuel Filter Location (Filter MB Part# 642-090-63-52 – $155 Amazon)

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26 – EGR: If your Sprinter engine is sputtering, lacks power in the midrange (1500-2000) RPMs, or has trouble going up-hill, you may need to clean the EGR valve. They usually need cleaning around 20,000 miles.

If you are moderately handy, it is a possible DIY project with the help of a couple YouTube videos. You will need a couple specialized star sockets (E10), hose clamp tool, and a spray can of carburetor cleaner.

Replacement MB Part# 642-140-14-60-64 – $742

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TIP#234: Engine Cool Down –When preparing to shut off the engine after highway driving (like at rest stops), idle the engine 3-5 minutes to allow the turbo charger to cool down gradually and get oil into the turbo bearings. This can extend the life of the turbo and the engine.

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TIP#187: Diesel Particulate Filter – The diesel particulate filter (DPF) captures and stores the soot so it is not released into the environment. To keep the filter clean, the soot is periodically burned off. You may get a dash warning light or smell strong diesel fumes. If the warning light is on, the fix is to simply drive the van at highway speeds for 30-60 minutes. Replacing the DPF can cost over $2,000.

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TIP#171: Spare Belts –Strongly suggest carrying spare belts.
The belt part numbers for our 2020 V6 sprinter are:
Serpentine belt – MB – 002-993-42-96. Used on 2007-2021 $69
AC Belt – MB – 001-993-39-96. Used on 2010-2021 $31.50
Second Alternator Belt – Gates Micro-V K060465 6PK1181 (unverified)

TIP#230: How to read a PK belt –
6=Number of ribs. PK=automotive. 1181= Length in millimeters.

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6 – External – Undercarriage
7 – Engine Compartment
8 – Driver Seat

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Cabin Fresh Air Intake

The Cabin Fresh Air Intake is located under a vent in the hood on the passenger side. The vent on the driver’s side is non-functional and only to balance the appearance. Early sprinter models had the cabin air filter clipped in the back of this chamber. In later models, the cabin filter is located under the passenger dash. Any water coming in through the hood vent is drained out a tube in the bottom of the chamber. Occasionally check for debris that may obstruct the drain.

Engine Air Filter

The engine air filter should be replaced every 10,000 miles as part of the routine service.
(2019+ MB Part# is 000 090 37 51 – $30).

Battery Jump Terminal

If ever necessary, the chassis battery can be jump-started at the two terminal posts. Push back the red insulator and attach the positive jumper cable to the post. The negative jumper cable attaches to the bare post (15) on the side wall.

Brake Fluid Reservoir

Check that the brake fluid level is up to the line on the tank. Brake fluid should be Dot-4.
(MB Part# 000 989 08 07 01)

Windshield Washer Fluid Reservoir

Windshield washer fluid reservoir holds 1.45 gallons
(Cap MB Part# 9068690072 $11)

Oil Fill Cap

Oil Fill Cap & tube. 2019+ V6 Engine Oil capacity is 13.2 quarts of 5W30 oil. Select oil grade based on environment temperatures (see Op Manual).
Permissible grades: 228.51, 229.31, 229.51, 229.52.

Radiator Coolant Expansion Reservoir

2019+ Radiator holds 2.6 gallons of coolant.  It is recommended the fluid be flushed every 2 years or 30K miles.
(MB Part# 000989082511)

Diesel Exhaust Fluid

DEF, commonly referred to as AdBlue or Blue DEF, is a mixture of 67.5 percent deionized water and 32.5 percent urea (ammonia). DEF is sprayed into the exhaust to convert NOx emissions into nitrogen and water. 2019+ Sprinter DEF tank 6.6 gallons and 4.7 gallons in older Sprinters. DEF is sold in 2.5 gallon containers and at pumps in truck stops. You can expect to get about 2,300 miles per gallon of DEF consumed. If your sprinter is allowed to run out of DEF, engine power will be reduced, a solid red warning will be displayed, and the vehicle speed will be limited to 5 mph until the DEF tank is refilled. It is advised to refill once the level is half empty to avoid DEF crystallization on the sensors.

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