UK Reliability Directory

BMW 8 Series (G14/G15/G16)

Production Years: 2018 - 20243 Documented Faults

The modern 8 Series resurrects a legendary badge, replacing the 6 Series as BMW's premier heavy, luxurious grand tourer available in coupe, convertible, and Gran Coupe body styles. Positioned to rival the Porsche Panamera and Mercedes S-Class Coupe, it is based heavily on the 5/7 Series platform, offering blistering performance and a sumptuously trimmed cabin. In the UK, it is an exclusive, expensive vehicle to buy and run, particularly the M850i V8, but it delivers immense continent-crushing capability. It suits wealthy buyers seeking a dramatic, fast, and highly refined GT car with massive road presence.

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Common Faults & Reliability

These are the most common documented problems for the BMW 8 Series (G14/G15/G16), sorted by their typical impact and frequency.

Front Tyre Inner Wear

medium severity

The heavy front end and aggressive camber/toe settings can cause the inner edges of the front tyres to wear down to the cords very quickly.

Est. repair cost:£400–£800 (Tyres & alignment)

Laserlight Condensation

high severity

The ultra-expensive BMW Laserlight headlamp units can suffer from internal condensation, eventually frying the control modules.

Est. repair cost:£1,500–£3,000

Frameless Window Glitches

low severity

The windows occasionally fail to drop the required 10mm when opening the door, catching on the trim.

Est. repair cost:£100–£300

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