Before you buy a used Mercedes-Benz Sprinter (T1N).
Taken only from Testigo's sourced sheets. Use it to question the seller and on the test drive: it does not confirm that any particular car is affected.

The essentials.
- 2 documented, sourced faults across its 2 engines.
- That is not much data: if no other faults show up here, it does not mean it has none.
- 1 of them depends on the equipment or the production date: ask what this car has.
- 1 official recall on record: ask for the chassis number (VIN) and confirm it has been done.
- According to the data we have, the engine with the fewest documented faults is the 2.7 CDI (Diesel).
Typical faults by engine
The period and mileage are those mentioned by each sheet's sources. They are not a maintenance interval and do not predict that any particular car will fail.
All versions
Sheets the catalogue links to all 2 of its engines.
- 13-pin connector leak on the 722.6 gearboxAutomatic gearbox
- Period mentioned
- 1996–2013
- Mileage mentioned
- The sheet does not mention a mileage.
Applies if: Only if fitted with the automatic gearbox described in the record.
2.2 CDI (OM611/OM646)
Diesel
- OM646 injector seals (black death)Injection / intake
- Period mentioned
- 2002–2010
- Mileage mentioned
- From 150,000 km
2.7 CDI
Diesel
We have no faults specific to this engine, only those common to every version.
Which engine has the fewest documented faults?
| Engine | Documented faults | Recalls |
|---|---|---|
| 2.2 CDI (OM611/OM646)Diesel | 21 with conditions | 0 |
| 2.7 CDIDieselFewest documented | 11 with conditions | 1 |
According to the data we have, the engine with the fewest documented faults is the 2.7 CDI (Diesel).
We only count the sourced sheets we have. An engine with fewer is not guaranteed to be more reliable: it may have been studied less or sold in smaller numbers.
Official recalls: ask before you pay
A recall existing does not mean this car is affected or that it is still outstanding: it depends on the chassis number, the market and the production date.
- Ask the seller for the chassis number (VIN): it has 17 characters, appears in the car's documents and can usually also be seen at the base of the windscreen.
- Ask an official Mercedes-Benz dealer, or the brand's official website if it lets you check by chassis number, whether each recall has been done or is still outstanding for that VIN.
- Manufacturer recalls are normally carried out free of charge by the official service network. If one is outstanding, ask for it to be done before you close the sale.
Recall: tyre-valve leakageWheels / tyres
Engines: 2.7 CDI (Diesel)
How to check it: Confirm VIN; fit specification-compliant valves.
View full entryOn the test drive: what to look and listen for
Taken from each sheet's symptoms and checks. You can tick off what you have already looked at: it is saved only in this browser.
0 of 2 checked
Injection / intake
Look out for: Puffing or “chuffing” at idle, a diesel smell under the engine cover and a hard black crust around the injectors; power loss from sooted intake flaps or turbo.
Ask them to check: Remove the engine cover and look for black residue around the injectors, listen at idle and check the intake flaps.
Automatic gearbox
Look out for: Oil around the electrical connector on the side of the gearbox, harsh shifts or slipping, delayed engagement and limp mode: the car stays in one gear (usually 2nd and reverse after a restart) and the engine light comes on.
Ask them to check: Read the gearbox control unit codes before switching off if possible (a restart can clear them). Look for oil at the connector and, with it unplugged, on its pins and at the control unit plug. According to the service bulletin, the connector should only be removed with gearbox oil below 50 °C to avoid damaging the conductor plate, and the harness must be routed without tension.
Sources
Every fact on this page comes from these Testigo sheets and their original sources. Sources are not checked in real time.
- OM646 injector seals (black death)
- 13-pin connector leak on the 722.6 gearboxBrake & Front End (ALLDATA): oil leak at the 722.6 connectorMercedesMedic: replacing the 722.6 13-pin connectorMercedesMedic: P0715 and P0720 codes and limp modeMBClub UK (forum): oil in the 722.6 harness on an ML55Bob Is The Oil Guy (forum): CLK320 in limp modeThe Transmission Shop: leaks and limp mode in Mercedes gearboxes
- Recall: tyre-valve leakage
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