The entry-level diesel in the F10 5 Series, introduced in 2013 as part of the LCI facelift. The 518d pairs the same 2.0-litre four-cylinder diesel found in the 520d with a lower state of tune: 143 hp with the N47 engine (2013-2014) or 150 hp with the B47 (2014-2016). In practice, the 518d shares virtually all reliability characteristics with the 520d. The key buying decision is identifying whether the car has the N47 or B47 engine, as this fundamentally changes the ownership risk profile.· more· less
Good fuel economy (4.3-4.7 l/100 km)Lower insurance than 520d/525d
N47 timing chain risk (2013-2014)EGR cooler fire recall on all cars
Buy if: You want an affordable 5 Series for long-distance commuting and can find a 2014+ model with the B47 engine and complete service history.
Avoid if: The car has cold-start rattle, incomplete service records, or was driven primarily on short urban trips.
Price & maintenance
Used price
€11,200
median asking price, typically 160,000 km
Typical range€10,000 – €13,000
Maintenance cost
€800 – €1,600/year
at 15,000 km/year
Fixed costsservice, tyres, brakes€450 – €800 /yr
Risk bufferunplanned repairs€350 – €800 /yr
Price estimates are based on German asking prices. Prices and costs vary by vehicle condition and location.
Ownership costs
Maintenance assumes 15,000 km a year. Price estimates are based on German asking prices. Prices and costs vary by vehicle condition and location.
Used price
€11,200
Typically €10,000 – €13,000, at around 160,000 km.
Maintenance
€800 – €1,600per year
€450 – €800
service, tyres, brakes
€350 – €800
repair buffer
Price & maintenance
Used price
€13,600
median asking price, typically 155,000 km
Typical range€12,500 – €15,600
Kilometres drivenAll
Maintenance cost
€800 – €1,600/year
at 15,000 km/year
Fixed costsservice, tyres, brakes€450 – €800 /yr
Risk bufferunplanned repairs€350 – €800 /yr
Price estimates are based on French asking prices. Prices and costs vary by vehicle condition and location.
Ownership costs
Maintenance assumes 15,000 km a year. Price estimates are based on French asking prices. Prices and costs vary by vehicle condition and location.
Used price
€13,600
Typically €12,500 – €15,600, at around 155,000 km.
N47 timing chain stretch and failure (2013-2014 models)
up to €5,0001 of 8
Rear-mounted timing chain stretches, causing cold-start rattle and risking catastrophic engine damage · more· less
The N47 engine fitted to 518d models produced from 2013 to approximately mid-2014 positions its timing chain at the rear of the engine against the gearbox. The chain, tensioner, and guides are prone to premature wear, particularly on cars serviced at BMW's extended oil change intervals rather than annually. BMW revised the chain components in 2011, which reduced the failure rate compared to older N47 engines in E60/E90 models, but did not eliminate the problem. Symptoms begin with a metallic rattle on cold start lasting up to 30 seconds. If ignored, the chain can skip teeth or snap, causing valve-piston contact and total engine destruction. Independent specialists charge around €1,500-2,500 for chain replacement, as gearbox removal is required for access. If the engine is damaged, a replacement runs €3,500-5,000. The 518d's N47 units are all post-2013 production (later revision), so the failure rate is lower than on pre-2011 N47 engines, but the risk remains real. Post-2014 models with the B47 engine relocated the chain to the front and are not affected by this issue.
EGR cooler leak (fire risk recall)
up to €1,5002 of 8
EGR cooler can leak coolant internally, potentially causing intake manifold melting and fire · more· less
BMW issued a major recall affecting approximately 800,000 diesel vehicles worldwide, including the 518d F10 with both N47 and B47 engines. The EGR cooler can crack internally, allowing coolant to mix with diesel soot at high temperatures, creating smouldering particles that can melt the intake manifold. In rare cases, this can lead to a vehicle fire. BMW has run multiple rounds of this recall (2018, 2019, 2021, 2024) with progressively improved replacement parts. The recall repair is free at BMW dealers regardless of warranty status. If the recall has not been completed and you pay privately, aftermarket EGR cooler replacement costs €600-1,500 at an independent workshop. Always verify recall completion with a BMW dealer using the VIN before any purchase. Do not buy an F10 diesel without confirmed recall status.
Electric power steering rack knocking
up to €2,2003 of 8
Internal wear in the EPS rack causes clunking noise over low-speed bumps · more· less
The F10 electric power steering rack develops a distinctive knocking or clunking sound when driving over small bumps at low speed. The cause is internal play between the thrust piece and rack gear. This is one of the most commonly reported F10 platform issues, with many owners experiencing it between 60,000 and 120,000 km. BMW released a repair kit (thrust piece) that costs around €40-60 for the part. Including labor and alignment, the repair kit fix costs €100-250 at a specialist. However, if the internal wear is advanced, a full rack replacement costs €1,800-2,200. The knocking is cosmetic rather than safety-critical and does not affect steering precision. Some cars with Thyssenkrupp racks respond well to the repair kit, while those with ZF racks may need a different approach. Always test by driving slowly over speed bumps during a pre-purchase inspection.
DPF clogging from short-trip driving
up to €1,8004 of 8
Diesel particulate filter blocks when the car is driven mainly on short urban trips · more· less
Both the N47 and B47 engines use a diesel particulate filter that requires sustained highway driving at 60+ km/h for 15-20 minutes to regenerate. Cars used mostly for short urban trips fail to complete regeneration cycles, causing soot accumulation. A common compounding factor is a stuck thermostat, which prevents coolant from reaching the temperature threshold that triggers regeneration. Each failed regeneration dumps unburnt fuel into the engine oil, raising the oil level and diluting its lubricating properties. Professional forced regeneration costs €150-300. DPF cleaning runs €300-500. Full DPF replacement costs €800-1,800 depending on aftermarket or OEM parts. Before buying, check the engine oil level: if significantly above maximum, diesel has been contaminating the oil. The 518d's lower power output makes it popular with urban commuters, which paradoxically increases DPF risk for this variant.
EGR valve carbon buildup
up to €8005 of 8
Carbon deposits clog the EGR valve, causing rough idle and reduced power · more· less
Separate from the cooler recall, the EGR valve itself accumulates carbon deposits over time, particularly on cars driven gently or on short trips. Some owners report valve failure within 12-18 months of having the cooler recall performed, as the new cooler does not prevent carbon buildup on the valve. Symptoms include rough idle, reduced power, increased fuel consumption, and engine management warning light. Cleaning the EGR valve costs €150-250 at a specialist. Full valve replacement costs €400-800 including parts and labor. Regular spirited driving and periodic highway use help keep the valve cleaner. This issue affects both N47 and B47 engines, with carbon buildup commonly becoming noticeable after 80,000-120,000 km.
Turbo actuator sticking
up to €2,5006 of 8
Electronic wastegate actuator sticks from carbon buildup, causing limp mode · more· less
The turbocharger uses an electronically controlled wastegate that can stick from carbon buildup, particularly on gently driven cars or those used primarily for short trips. Symptoms include loss of power, engine management warning light, and limp mode. BMW does not sell the actuator separately, so their quote typically includes full turbo replacement at €1,500-2,500. Specialist repair services can rebuild or replace the actuator for €400-600. The 518d's lower-output turbo calibration means slightly less thermal stress than the 520d, but the actuator design is shared and equally susceptible. Regular highway driving and occasional spirited use help prevent carbon buildup.
Swirl flap degradation (N47 models, 2013-2014)
up to €1,2007 of 8
Plastic intake swirl flaps become brittle from heat and can cause limp mode or engine damage · more· less
The N47 intake manifold contains plastic swirl flaps that degrade over time due to engine heat and vibration. The flap actuator linkage can wear, triggering fault codes and limp mode. In the worst case, broken flap material can be ingested into the combustion chamber, causing scored cylinder walls and piston damage. A new intake manifold runs €850-1,200 fitted. Many owners proactively remove and blank the swirl flaps using aluminum plugs at around €150-200, which eliminates the risk with no noticeable performance loss. The B47 engine (from 2014) uses a revised intake design with improved components and is less prone to this failure.
Cabin water leak (steering column grommet)
up to €5008 of 8
Deteriorated bulkhead grommet allows rainwater into the cabin footwell area · more· less
A well-documented F10 platform issue. The steering column cover or grommet on the bulkhead loses its seal over time, allowing rainwater to enter the cabin. This primarily affects the driver's footwell but can spread to the passenger side. On older F10s, debris can also block the scuttle drainage channels, worsening the leak. If water reaches the electronic modules under the carpet, repair costs escalate significantly. The grommet itself costs €20-50 and can be replaced with waterproof sealant for additional protection. However, if water has already damaged carpet, insulation, or electronics, costs can reach €300-500. Always check the footwell carpet for dampness during a pre-purchase inspection, particularly after rain.
Engine variant is the deciding factor
The BMW 518d F10 straddles two different reliability profiles depending on the engine fitted. The 2013-2014 cars with the N47 engine carry the well-documented timing chain risk and swirl flap concerns, though these are later-production N47 units with improved components compared to the pre-2011 versions. The 2014-2016 cars with the B47 engine are significantly more reliable, with the timing chain relocated to the front and revised intake components. Both engine variants share the EGR cooler fire recall (verify completion before any purchase), DPF sensitivity to short-trip driving, and the common steering rack knocking issue. The ZF 8-speed automatic is generally dependable with regular fluid changes. The 518d's lower power output means it is often chosen by urban commuters, which ironically increases the risk of DPF and EGR problems. With regular motorway use and proper maintenance, the B47 518d is a capable and affordable long-distance car.
Service history
Complete BMW dealer or specialist records essential. Verify oil changes every 10,000-15,000 km, not BMW's extended long-life interval.
Cold start test
Start the engine completely cold. Listen for any metallic rattling in the first 30 seconds. This is the most critical check for N47 timing chain health.
Extended test drive
Drive for at least 30 minutes including highway speeds. Check for smooth turbo response, consistent power delivery, and any warning lights.
Tire condition
Check tread depth, age (date codes on sidewall), and uneven wear patterns. Standard size: 225/55R17. Rear tires wear faster on rear-wheel-drive models.
Specific for this vehicle
Identify the engine: N47 or B47
Check the build date on the door jamb sticker. 2013-mid 2014 production = N47 (143 hp). Mid 2014-2016 = B47 (150 hp). The B47 is significantly more reliable. Verify via VIN with BMW if unsure.
Verify EGR cooler recall completed
Contact BMW with the VIN. This is a fire safety recall affecting both N47 and B47 diesel models. BMW has expanded the recall multiple times since 2018. Do not purchase without confirmed completion.
Cold-start timing chain rattle (N47 only)
On 2013-2014 cars, listen for metallic rattling from the rear of the engine lasting more than a few seconds on cold start. Any persistent rattle indicates chain stretch requiring immediate attention.
+ 4 more checksShow less
Drive over low-speed bumps for steering rack test
Drive slowly over small bumps and speed bumps. Listen for knocking or clunking from the steering area. Very common on F10 but fixable with the thrust piece kit for around €100-250.
Check engine oil level carefully
Oil above maximum on the dipstick indicates failed DPF regenerations diluting the oil with diesel. A fuel smell on the dipstick is a serious red flag.
Inspect footwell carpet for dampness
Check the carpet in the driver and passenger footwells for moisture. Water ingress through the deteriorated steering column grommet is common on older F10s.
Run BMW ISTA diagnostic scan
Have a specialist run a full diagnostic to check DPF soot loading, stored fault codes, pending recall work, and battery health. DPF soot above 50% on a warm car suggests poor regeneration history.
Recalls and Technical Service Bulletins
EGR cooler leak with fire risk (multiple campaigns: 2018, 2019, 2021, 2024 — affects N47 and B47 diesel models)Critical - verify completed
Takata airbag inflator replacement (selected production periods, verify with VIN)Verify with VIN
Contact a BMW dealer with the VIN to verify all recalls and service campaigns have been completed. The EGR cooler recall is the most critical as it addresses a fire risk. BMW has expanded this recall multiple times since 2018, so even if a previous repair was done, verify that the latest updated part has been fitted.
Warranty Status
Factory warranty (2 years)Expired on all F10 518d models
Rust perforation warranty (12 years)May still apply on 2014-2016 models until 2026-2028
EGR cooler recallFree repair regardless of warranty status
All F10 518d models are now outside their original 2-year factory warranty. BMW introduced the 2+1 year warranty from November 2016, but since the 518d F10 was discontinued by then, no 518d benefited from the extended scheme. Recall-related repairs (EGR cooler) are performed free of charge regardless of warranty status. The 12-year rust perforation warranty may still apply to 2014-2016 models.
Sources: Research draws on model-specific owner forums and owner communities, recall information from official authorities, German automotive press, and multiple workshop cost references cross-checked against each other.
This report is for informational purposes only and does not constitute professional advice. Estimates may be inaccurate. Always have a qualified specialist inspect the vehicle before purchase. We accept no liability for decisions made based on this information.
