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BMW i8 i8 First Edition common faults.

2014–2018, coupé, hybrid, 231 HP.

The fault list covers: B38K15T0 engine.

What you save stays on this device only. My saves

1 fault write-ups. Important. 5 recalls.

If you know the year, pick it. Faults for other years drop out of the list.

Before you buy

Known faults

1 important faults

Electric water pump: silent failure, immediate overheating

critical

In these engines the water pump is not belt driven but has its own electric motor. It gains on fuel consumption, but it opens a new failure path: the pump or its electronics often simply stops with no warning. Measured in the official complaints, the typical mileage is 161,000 km (a tenth of the complaints already at 81,000, a tenth only above 257,000 km). So the common wisdom of "around 100,000 km" is early: most of the failures happen between 130,000 and 250,000 km.

Show the rest

With a belt driven pump the flow weakens gradually, here the circulation stops in an instant. In urban traffic the temperature crosses the limit within minutes, the cylinder head distorts, and the repair is an engine rebuild.

Replacing a still good pump at around 120,000 to 150,000 km costs less than repairing an overheated engine. If the replacement is already in the service book, the pump has already been changed.

between 81,000 and 257,000 km

What to check

  • Watch the coolant temperature gauge after startup: it should settle evenly, not jump around
  • Standing still with a warm engine, listen for whether the cooling fan and the pump are working
  • Ask for a fault code read: codes pointing at coolant flow belong here
2 more steps in the write-up

Checklist

BMW i8 i8 First Edition

First what you would check on any car. Then the faults of this model.

Before you buy

Checklist

The printed sheet starts with what you would check on any car. What you tick stays on this device only.

On every car

Ask the owner

Faults of this model

vinkodex.com · Before you buy it, see what can go wrong.

Official recall5 recallsShow

The manufacturer fixes these for free at a franchised dealer. Ask with the VIN whether it was done.

Most recent: 14 August 2019

19V599000HYBRID PROPULSION SYSTEMHYBRID PROPULSION SYSTEM14 August 2019 · NHTSA (USA)

BMW of North America, LLC (BMW) is recalling certain 2019 i3 BEV, i3 REx, and i8 vehicles. A circuit board problem within the Electric Motor Electronics (EME) module may shutdown the supply of high-voltage electrical power.

Risk: A shut down of high-voltage electrical power would result in a loss of propulsion, increasing the risk of a crash.

Remedy: BMW will notify owners, and dealers will replace the EME module, free of charge. The recall began October 11, 2019. Owners may contact BMW customer service at 1-800-525-7417.

We could not check this: model year. The authority's notice

16V914000AIR BAGSAIR BAGS20 December 2016 · NHTSA (USA)

BMW of North America, LLC (BMW) is recalling certain model year 2017 BMW 640i, 640i xDrive, 650i, 650i xDrive, M6, 535i, 535i xDrive, 430i, 430i xDrive, 440i, 440i xDrive, M4, X1 sDrive28i, X1 xDrive28i, i3, i8, Rolls-Royce Dawn, Mini Clubman Cooper, Clubman Cooper S, Cooper All4, Cooper S All4, Mini 4-Door Cooper, Cooper S, Mini 2-Door Cooper, Cooper S, John Cooper Works and 2016 BMW 528i, 528i xDrive, 535i, 535i xDrive, 550i, 550i xDrive, M5 and 535d vehicles. The affected vehicles have seat- mounted side air bag inflator initiators that may fail to ignite during a crash.

Risk: If the air bag inflator initiator fails to ignite, the seat-mounted air bag will not deploy, increasing the risk of injury.

Remedy: BMW will notify owners, and dealers will replace the air bag modules, free of charge. The recall began February 6, 2017. Owners may contact BMW customer service at 1-800-525-7417.

We could not check this: model year. The authority's notice

15V882000ELECTRONIC STABILITY CONTROL (ESC)ELECTRONIC STABILITY CONTROL (ESC)28 December 2015 · NHTSA (USA)

BMW of North America, LLC (BMW) is recalling certain model year 2015 i8 vehicles manufactured May 29, 2015, to June 5, 2015. Improperly drilled holes within the Dynamic Stability Control (DSC) hydraulic unit may restrict one or more pistons impairing the DSC functions, including braking.

Risk: Impaired DSC functionality may negatively impact vehicle handling and braking and increase the risk of a crash.

Remedy: BMW will notify owners, and dealers will inspect the DSC hydraulic unit, and replace if necessary, free of charge. The recall began on February 8, 2016. Owners may contact BMW customer service at 1-800-525-7417.

We could not check this: model year. The authority's notice

14V674000FUEL SYSTEM, GASOLINE:STORAGE:AUXILLARY TANKFUEL SYSTEM, GASOLINE:STORAGE:AUXILLARY TANK27 October 2014 · NHTSA (USA)

BMW of North America, LLC (BMW) is recalling certain model year 2014 i8 vehicles manufactured from May 16, 2014, to September 16, 2014. A bolt used to attach a ground cable between the tank and the vehicle chassis may not have been properly welded during manufacturing.

Risk: An inadequate weld of the bolt to the fuel tank could cause a fuel leak. In the presence of an ignition source, a fuel leak could lead to a fire.

Remedy: BMW will notify owners, and dealers will inspect and replace the fuel tank if necessary, free of charge. The recall began in November 2014. Owners may contact BMW customer service at 1-800-525-7417 or CustomerRelations@bmwusa.com.

We could not check this: model year. The authority's notice

A12/0036/17Safety recallInjuriesno date · EU Safety Gate

The side, head and knee protection airbags of the front passenger seat may not work. This could increase the risk of injury to the occupant in the event of an accident.

Remedy: Type of economic operator taking notified measure(s): Manufacturer Category of measure(s): Recall of the product from end users Date of entry into force: Unknown

We could not check this: model year. The authority's notice

Engine and transmission

B38K15T0

170 kW (231 HP) · unknown

We built the code from the model and the gear count. The factory sheet does not state it.

Variant data

What is in this version

Factory data

Trim
i8 First Edition
Body
coupé
Fuel
hybrid
Transmission
automatic
Engine size
1499 cc
Power
170 kW (231 HP)
Drive
AWD
Production
2014–2018

Factory service interval

The manufacturer specifies this for this version. Of the mileage and the time, the one that comes first is the one that counts.

  • Air filter

    • 60,000 km or 4 years

  • Cabin (pollen) filter

    • 30,000 km or 2 years

  • Brake fluid change

    • first: 3 years, then 2 years(first change at 3 years, then every two years)

  • Engine oil and oil filter (BMW condition-based service)

    • LongLife25,000 km or 2 years
All I12 versions

Information, not an expert opinion

We write the descriptions, and we put the source next to them. A person reviews them before they go out. They are still information, not a technical expert opinion.

  • A fault on the list does not mean the car you are looking at has it.
  • A fault missing from the list does not mean the model is fault-free. Write-ups are made model by model. Not all of them are done.
  • You decide whether to buy. This is no substitute for an inspection. That needs a workshop and a history check.
Details in the terms