BMW 5 Series Common Faults in Ireland
G30, 2017–2024 — premium executive saloon. Updated 2026-05-04.
The current-generation G30 5 Series (2017–2024) is generally robust in Irish conditions — its B47 diesel does not share the older N47's timing-chain weakness. The years to genuinely avoid are early F10 diesels (2010 to roughly mid-2011, especially 520d/525d with the N47 engine) — BMW moved the chain to a cheaper front mount and addressed the issue in a running production change from around March 2011, and the F10 moved to the safer B47 engine entirely from 2014. 530d Touring air-suspension can also fail after 150,000 km on either generation. Best-buy years: G30 2019–2021. Worst: early F10 (2010–mid-2011) N47 diesel.
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Which BMW 5 Series years should you avoid?
Avoid 2010–mid-2011 F10 (early N47 diesel, rear-mounted chain) BMW 5 Series models if you can. Avoid early-production F10 520d/525d diesels (2010 to roughly mid-2011) fitted with the N47 2.0 engine in its original rear-mounted-chain form — that early chain can stretch and fail, and because it sits at the back of the engine, the fix is an engine-out job costing €3,000+ (2026). BMW moved the chain to a front mount in a running production change from around March 2011, and the F10 moved to the safer B47 diesel entirely from 2014 — later N47 and all B47 examples are a materially safer buy. Always confirm the exact build date and engine code by VIN rather than assuming from the plate year alone.
Best and worst years to buy
The current G30 (2017 on) uses the much-improved B47 diesel — no timing-chain weakness — plus refreshed iDrive 7 software and the EGR cooler recall completed. The 2019 LCI brought minor design tweaks but bigger reliability gains under the bonnet.
Avoid early-production F10 520d/525d diesels (2010 to roughly mid-2011) fitted with the N47 2.0 engine in its original rear-mounted-chain form — that early chain can stretch and fail, and because it sits at the back of the engine, the fix is an engine-out job costing €3,000+ (2026). BMW moved the chain to a front mount in a running production change from around March 2011, and the F10 moved to the safer B47 diesel entirely from 2014 — later N47 and all B47 examples are a materially safer buy. Always confirm the exact build date and engine code by VIN rather than assuming from the plate year alone.
Known faults — BMW 5 Series G30, 2017–2024
Documented from HonestJohn, owner forum sentiment (boards.ie, Reddit), Irish RSA recall portal, and Autoza dealer-feedback aggregation. Severity is colour-coded.
Engine — early N47 diesel timing chain (early F10 only, ~2010–mid-2011 — NOT this G30's B47)
Critical — engine-out potential- Symptoms
- Rattle on cold start that fades after 5–10 seconds; metallic chain noise when accelerating
- Years affected
- Early F10 production only (roughly 2010 to mid-2011, N47 engine code, 520d / 525d, rear-mounted chain design) — BMW moved to a front-mounted chain from ~March 2011, and the F10 moved to the B47 entirely from 2014; the G30 covered by this guide is unaffected either way — Above 120,000 km
- Indicative repair (Ireland)
- €3,000+ (engine-out job on the early rear-mounted chain design)
- What to check before buying
- If shopping an early F10 (2010–mid-2011), cold-start in person — never accept "the engine is already warm". Check the exact build date and engine variant by VIN, since the chain-position fix was a running change, not a model-year change. Borescope inspection at a BMW specialist (€80–€120) is the cheapest insurance. Not a concern on the G30 covered by this guide.
EGR cooler (B47 diesel)
Major — significant repair cost- Symptoms
- Coolant loss with no visible external leak; in worst cases, EGR cooler fire (recall issued)
- Years affected
- 2014–2018
- Indicative repair (Ireland)
- Free under recall if not yet completed; otherwise €1,200–€1,800
- What to check before buying
- Ask the dealer for proof the EGR cooler recall was completed. Recall reference: 0036530100. RSA Ireland recall portal can verify by VIN.
Air suspension (530d Touring, 540i Touring)
Moderate — service-level fix- Symptoms
- Car sits low at one corner overnight; harsh ride; air-pump runs constantly
- Years affected
- All years on Touring with optional air suspension — Typical failure 150,000–180,000 km
- Indicative repair (Ireland)
- €800–€1,400 per corner (genuine BMW); aftermarket from €350
- What to check before buying
- Park overnight before viewing — check ride height all four corners next morning. Listen for the air pump cycling at idle.
iDrive eDrive battery (530e PHEV)
Moderate — service-level fix- Symptoms
- Reduced electric-only range; longer charging time; loss of full hybrid mode
- Years affected
- 530e PHEV, all years — After year 5, especially below 30°C usage patterns
- Indicative repair (Ireland)
- €3,500–€6,000 for replacement battery pack
- What to check before buying
- Ask for current EV-only range during test drive. Should achieve 35–45 km on a full charge in mild Irish weather. Below 25 km signals battery degradation.
Mechatronic (8HP gearbox, post-200k km)
Major — significant repair cost- Symptoms
- Harsh shifts from 2nd to 3rd; check-engine light with transmission codes
- Years affected
- All years, mileage-dependent — Typical issue beyond 200,000 km without fluid changes
- Indicative repair (Ireland)
- €1,500–€2,800 for mechatronic rebuild; full ZF service €450–€650
- What to check before buying
- Service history must show ZF 8HP transmission fluid + filter change every 80,000 km. BMW says "lifetime fluid" — independent specialists strongly disagree.
Front lower control-arm bushings
Minor — wear-and-tear- Symptoms
- Knocking over speed bumps; vague steering; uneven tyre wear on inner edges
- Years affected
- All years — 120,000+ km
- Indicative repair (Ireland)
- €280–€450 both sides
- What to check before buying
- Drive over a speed bump slowly during test drive. Listen for clunks. Check inner edge tyre wear.
Sunroof drains (panoramic)
Moderate — service-level fix- Symptoms
- Damp footwells after rain; mouldy smell; water ingress in headlining
- Years affected
- All G30 with panoramic roof
- Indicative repair (Ireland)
- €150–€400 for drain unblocking; €1,800+ if headlining damaged
- What to check before buying
- Lift carpet at footwells, check for damp. Smell test on a humid day. Look for water staining around A-pillar headliner.
Who this car suits — and who should look elsewhere
Long-distance commuters, motorway drivers, anyone covering 25,000+ km/year. Excellent depreciation curve from 4 years onwards.
Short-trip city driving (DPF issues), drivers who skip routine servicing, anyone unwilling to budget €700–€1,000/year for maintenance.
Alternatives to consider
If the BMW 5 Series doesn't suit, these comparable models are worth a look in the Irish market:
- →Mercedes E-Class W213
- →Audi A6 C8
- →Volvo S90
Before you buy or sell a BMW 5 Series
Two quick checks pay for themselves on any used 5 Series. First, check the car's NCT history before you buy — a missed or repeat-fail NCT often signals a chronic fault the seller is hoping you'll miss. Second, if you're weighing the 5 Series against rival models, you can compare the 5 Series against its rivals side-by-side on price, running costs and spec.
Selling instead? See what your BMW 5 Series is worth with our free Irish valuation — it reads live comparable listings and returns a resale and trade-in figure in seconds, no signup.
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