Used BMW X6

What to know before buying: BMW X6

From 3 video reviews, 1 forum thread and 1 press test · updated 23/09/2026

What the reviews say

• The X6 combines striking coupé styling with precise handling, but is notably less practical than the X5.[5][3]
• The G06’s sloping roof limits visibility, cargo height and rear headroom; a 177 cm reviewer already touched the headliner.[1][3]G06
• A 2022 X6 owner reported no mechanical issues, bent 22-inch wheels or driving problems.[1]one sourceG06
• Owner experiences vary sharply: 2014 and 2017 3.0 diesels scored 10/10, while a 2009 diesel scored 3/10 and incurred major repair costs.[4]one source

Typical faults

• Steering mechanism and glow-plug relay failures are reported as common even on low-mileage cars.[5]one source
• The engine timing chain may require replacement after 200,000 km.[5]one source

  200 000+ km

• Diesels may need turbo replacement after 200,000 km; the 30d has one turbo and the 40d has two.[5]one source

  200 000+ km · 30d, 40d

• The 4.4-litre N63B44 V8 is prone to increased oil consumption and is not considered one of BMW’s more reliable engines.[5]one source

  N63B44, xDrive50i

• One 2021 G06 showed oil seepage around both turbos and their feed pipes, plus a leak down the engine’s right side.[2]one sourceG06

  2021–2021

Which engine and version to take

• The 245 hp xDrive30d is recommended as the best balance of performance and running costs.[5]one source
• The G06 40i’s 3.0-litre petrol engine is described as reliable with timely servicing, good fuel and clean radiators.[3]one sourceG06

What to avoid

• Approach the 4.4-litre N63B44 V8 cautiously: the source reports increased oil use and questions its reliability.[5]one source

What to check at the inspection

• Cross-check the odometer against BMW history and diagnostics: X6 mileage is often altered, and one G06 declared at 93,000 km contained a record at 193,695 km.[5][2]
• Inspect the turbos, oil-feed pipes and engine sides with a borescope; several signs of oil leakage were found there on a 2021 car.[2]one sourceG06
• Check the steering mechanism and, on diesels, the glow-plug relay; both faults are reported even at low mileage.[5]one source
• Assess brake-disc and pad wear and test for steering-wheel vibration under braking; the source also warns of corrosion on non-original discs.[5]one source
• For an N63B44, check the oil level, consumption history and evidence of shortened oil-change intervals.[5]one source
• On a 2008–2009 X6, test iDrive and decide whether its older, more primitive interface is acceptable.[5]one sourceE71

Verdict

Sources

1. [1]Car Therapy — Wish I Knew This Before I Got My BMW X6... · ▶ video
2. [2]FeelAuto — BMW X6 Checkout: Mileage Rollback and Hidden Problems! Shock Content! · ▶ video
3. [3]CarBlank — BMW X6 40i Понты или Комфорт? · ▶ video
4. [4]auto.jautajums.lv — BMW X6 atsauksmes | jautajums.lv - Auto, moto · forum
5. [5]whatcar.lv — Lietota BMW X6 pirkšanas padomi - What Car? - WhatCar.lv · press

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