BMW Série 5 F10/F11 (2010 – 2017)

Reliability score : 6.8/10

The BMW 5 Series F10 (sedan) and F11 (Touring/wagon) marks a return to classicism after the controversial design era of Chris Bangle (E60). Based on a shortened 7 Series (F01) platform, it offers imperial comfort, top-notch sound insulation, and impeccable finish quality. The facelift (LCI) occurred in July 2013, bringing minor aesthetic touches, an iDrive system update, and new engines. While its road qualities are undeniable, its mechanical reliability is very heterogeneous, particularly for petrol engines where the choice of engine code is absolutely crucial to avoid astronomical bills.

✅ Strengths

Interior finish quality and material aging
Sound insulation and ride comfort (especially with adaptive suspension)
Exceptional driving pleasure from 6-cylinder engines (N55 petrol, N57 diesel)
iDrive infotainment system (especially NBT post-2013), very intuitive
Imperial road handling on the highway
Responsive and ultra-reliable ZF 8-speed automatic gearbox (ZF8HP)

⚠️ Weaknesses

Disastrous reliability of the N63 V8 (550i Phase 1)
Costly problems on European direct-injection 6-cylinder petrol engines (N53)
Fragility of the timing chain on 4-cylinder engines (N20 petrol, N47 diesel) before 2014/2015
High weight (often > 1800 kg) which prematurely wears brakes and tires
Electric Power Steering (EPS) lacking feel compared to the previous generation (E60)
Very high maintenance and spare parts cost

🎯 Verdict

The BMW 5 Series F10/F11 is an exceptional touring car, but it's a vehicle where 'blind' buying is forbidden. If you're looking for a petrol engine in Europe, the 535i (N55) is the best choice, offering true BMW character with decent reliability provided preventive maintenance is performed. The 4-cylinder petrol engines (N20) should be avoided before 2015 due to the timing chain, and the European naturally aspirated 6-cylinders (N53) are potential money pits (injectors). Flee the 550i (N63) Phase 1 like the plague. Paradoxically, for maximum reliability on this generation in Europe, a post-2014 diesel model (B47) or a well-maintained 6-cylinder diesel (N57) often proves less risky than the entry/mid-range petrol models.

Common issues

Usure prématurée des guides de chaîne de distribution (moteurs N20/N26) High

🔧 80 000 – 150 000 km

💶 1 800 – 3 500 €

Vérifier l'historique d'entretien et écouter tout bruit suspect au démarrage.

Fuites d'huile (joint de cache-culbuteurs, joint de support de filtre à huile) (moteurs N20/N55) Medium

🔧 70 000 – 120 000 km

💶 350 – 800 €

Inspecter régulièrement le compartiment moteur pour toute trace d'huile.

Défaillance de la pompe à eau électrique (moteurs N55 et autres) Medium

🔧 90 000 – 150 000 km

💶 600 – 1 100 €

Surveiller la température moteur et le niveau de liquide de refroidissement.

Fissure du tuyau de suralimentation (charge pipe) (moteurs N55) Medium

🔧 60 000 – 120 000 km

💶 250 – 500 €

Remplacer préventivement par une pièce renforcée si possible.

Usure des silentblocs et bras de suspension (avant et arrière) Medium

🔧 100 000 – 180 000 km

💶 400 – 900 €

Vérifier le jeu dans la direction et l'usure des pneus lors de l'essai.

Estimated maintenance costs

Oil change	£90 – 160
Complete brakes	£500 – 1 000
Estimated annual budget	£650 – 1 300

Indicative estimates (independent garage, UK market). Prices vary by region and year.