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Before you buy a used BMW X4 (F26).

2014–2018 · Petrol / Diesel · 4 engines

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.

BMW X4 (F26), real photo of this generation
M 93 · CC BY-SA 3.0 DE · Wikimedia Commons · Photo source

The essentials.

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 4 of its engines.

  • ZF 8HP oil level, leaks and harsh shiftsAutomatic gearbox
    Period mentioned
    2009–2026
    Mileage mentioned
    The sheet does not mention a mileage.

    Applies if: Only if fitted with the automatic gearbox described in the record.

xDrive20i / 28i (N20)

Petrol

xDrive20d (N47, hasta 2015)

Diesel

  • Stretched rear timing chainTiming system
    Period mentioned
    2007–2015 (improved from 2011)
    Mileage mentioned
    The sheet does not mention a mileage.

xDrive20d (B47, desde 2015)

Diesel

xDrive30d / 35d (N57)

Diesel

  • N57 timing chainTiming system
    Period mentioned
    2008–2018 (most cases 2008–2011)
    Mileage mentioned
    From 200,000 km

Which engine has the fewest documented faults?

Documented faults and recalls by engine for the BMW X4 (F26)
EngineDocumented faults
xDrive20i / 28i (N20)Petrol41 with conditions
xDrive20d (N47, hasta 2015)DieselFewest documented21 with conditions
xDrive20d (B47, desde 2015)DieselFewest documented21 with conditions
xDrive30d / 35d (N57)DieselFewest documented21 with conditions

According to the data we have, the engines with the fewest documented faults are: xDrive20d (N47, hasta 2015) (Diesel), xDrive20d (B47, desde 2015) (Diesel), xDrive30d / 35d (N57) (Diesel).

By fuel, all versions have the same number of documented faults.

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

We have no official recalls on record for this model. Our list is not complete: ask anyway, with the chassis number.

  1. 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.
  2. Ask an official BMW 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.
  3. 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.

On 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 7 checked

Timing system

  • Look out for: High-pitched whine from the engine that rises with revs, rattle on a cold start.

    Ask them to check: Check the guides through the oil filler opening and listen for the whine with the bonnet open.

  • Look out for: Rattling from the rear of the engine (gearbox side) on a cold start, getting worse over time. In extreme cases the engine cuts out while driving.

    Ask them to check: Listen with the engine fully cold, ideally with a mechanic's stethoscope on the rear of the block.

  • Look out for: Chain rattle for the first 5–10 seconds after starting; on engines with low oil pressure, noises and oil pump damage.

    Ask them to check: Listen to a cold start and check the oil change history. The gearbox must come off to replace it.

Oil leaks

  • Look out for: Oil leak at the front of the engine, oil on the auxiliary belt (squeal or burning smell), sometimes oil and coolant mixing.

    Ask them to check: Visual inspection of the filter housing area, the belt and the bottom of the engine.

Cooling / leaks / VANOS

  • Look out for: Temperature warning and limited power with no prior warning (water pump); burning oil smell or smoke from leaks onto the exhaust or belt; rough idle and VANOS codes (2A82, 2A87).

    Ask them to check: Check the water pump and thermostat history, look for leaks at the valve cover and oil filter housing, and read VANOS codes.

Cooling / EGR

  • Look out for: Coolant loss with a low-level warning, coolant or oil residue at the rear of the engine; on diesels, internal coolant loss with no visible leak (EGR cooler).

    Ask them to check: Check the coolant level, look for leaks under the water pump and at the oil filter housing, and on diesels confirm by VIN whether the EGR cooler campaign was done.

Automatic gearbox

  • Look out for: Harsh shifts (especially engaging D and 1st to 2nd), slipping or jerking; oil leaks from the pan, the mechatronic connector sleeve or the seals.

    Ask them to check: Check the oil level with the official procedure (correct temperature and engine running), look for leaks at the pan, connector sleeve and seals, inspect the pan for impact damage and review adaptation values with ISTA.

OBD codes worth looking for

If they let you read the fault memory with an OBD reader, these are the codes mentioned in this model's sheets:

2A822A87

Sources

Every fact on this page comes from these Testigo sheets and their original sources. Sources are not checked in real time.

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