How much does a BMW 5 Series E12 engine replacement cost in the UK?

A reconditioned E12 engine typically costs £1,200–£10,000 supply only [BMW-QUOTE], depending on the engine – the M10 four-cylinder in the 518 sits at £1,200–£2,500, while the rare M88/1 in the South African M535i can exceed £10,000. Fitting adds £520–£1,170 at independent specialists. Use our calculator for a personalised figure.

Which E12 engine is the most reliable?

The M30B28 (528/528i) is widely considered the most reliable E12 engine – the 'Big Six' is renowned for exceeding 200,000 miles with proper maintenance. The carburetted M10B18 (518) is also bulletproof, while the M20B20 (520/6) requires diligent timing belt changes every 40,000 miles.

What are the common problems with the BMW 5 Series E12?

Cooling system failures (radiator, water pump, hoses) on all engines, fuel injection system issues on injected models (520i, 528i, 530i, M535i), M20 timing belt failure on the 520/6 (replace every 40,000 miles), and electrical grounding issues causing running problems across all variants.

Is the BMW 5 Series E12 reliable?

Yes – the E12 is one of BMW's most durable classic cars. The M30 six-cylinder is legendary for its longevity, and the M10 four-cylinder is similarly robust. The key to reliability is maintenance: cooling system refreshes, timing belt changes on M20 engines, and attention to fuel injection systems on injected models.

Which E12 engine should I avoid?

The early M15 (520i with Kugelfischer mechanical injection) can be problematic – parts are scarce and injection pump rebuilds are expensive. The US-spec 530i with thermal reactors can also run hot and exacerbate cooling system issues. If budget allows, the later K-Jetronic or L-Jetronic cars are more reliable.

How do I know if my E12 engine needs replacing?

Coolant loss without visible leaks, persistent overheating, a snapped timing belt on the M20, or a catastrophic injection failure are the key warning signs. Bottom-end knock or a seized engine are also clear indicators. Use our diagnostic calculator for a personalised assessment.

Is it worth replacing a BMW 5 Series E12 engine, or should I scrap the car?

Apply the 70% BMW scrap threshold. Against a well-kept £8,000 528i, a £2,500–£5,000 M30B28 recon is 31–63% – safe. Against a tired £4,000 example, the same recon is 63–125% – walk away unless the body is exceptional. For the M535i, values are high enough that even a £7,000 M90 rebuild is often a viable investment on a £15,000+ car.

How long do E12 engines last?

The M30 six-cylinder engines are capable of 200,000+ miles with proper maintenance – the cooling system is the limiting factor. The M10 four-cylinder is similarly durable. The M20 six-cylinder can also achieve high mileage but requires timing belt replacements every 40,000–60,000 miles. The M90 and M88/1 are robust but demand specialist care.

What is the difference between the E12, E28 and other 5 Series generations?

The E12 (1972–1981) is the first-generation 5 Series, followed by the E28 (1981–1987), E34 (1987–1995), E39 (1995–2003), E60 (2003–2010), F10 (2010–2016) and G30 (2016–present). The E12 is characterised by its classic Paul Bracq styling and was available only as a 4-door saloon. It pioneered BMW's 'Series' naming convention and established the 5 Series as a benchmark executive car.

How do I find my E12 engine code?

Listed on the VIN plate (visible through the windscreen) and vehicle documentation. The engine code is also stamped on the cylinder block – on M30 engines, it's on the left-hand side of the block near the starter motor. Tell us your variant and year and we'll identify it – 20+ vetted BMW specialists will confirm it for free.

E12 Engine Replacement Cost UK -Compare Quotes

Name: BMW 5 Series E12 UK Engine Enquiry Data 2025
Creator: BMWEngines.uk

BMW 5 Series E12 Engine Codes -The Complete Database

Every engine fitted to the E12 – from the entry-level four-cylinder to the range-topping M535i.

Engine CodeFamilyFuelDisplacementPowerYears (E12)Variants (badges)Reliability2025 EnquiriesAvg. Recon Cost

M10B18M10Petrol1.8L (1,766 cc)90 hp (66 kW)1974–1981518★★★★☆ [PROVISIONAL]-(pattern data)£1,200–£2,500 [BMW-QUOTE]

M64M10Petrol2.0L (1,990 cc)125 hp (92 kW)1976–1979520i★★★★☆ [PROVISIONAL]-(pattern data)£1,500–£3,000 [BMW-QUOTE]

M15M10Petrol2.0L (1,990 cc)115 hp (85 kW)1972–1976520i★★★★☆ [PROVISIONAL]-(pattern data)£1,500–£3,000 [BMW-QUOTE]

M20B20M20Petrol2.0L (1,990 cc)122 hp (90 kW)1977–1981520/6★★★★☆ [PROVISIONAL]-(pattern data)£1,800–£3,500 [BMW-QUOTE]

M30B25M30Petrol2.5L (2,494 cc)145–150 hp (107–110 kW)1973–1981525★★★★☆ [PROVISIONAL]-(pattern data)£2,000–£4,000 [BMW-QUOTE]

M30B28M30Petrol2.8L (2,788 cc)165–177 hp (121–130 kW)1974–1981528, 528i★★★★½ [PROVISIONAL]-(pattern data)£2,500–£5,000 [BMW-QUOTE]

M30B30M30Petrol3.0L (2,985 cc)176–188 hp (129–138 kW)1975–1977530i (US/Japan)★★★★☆ [PROVISIONAL]-(pattern data)£2,500–£5,500 [BMW-QUOTE]

M90M30Petrol3.5L (3,453 cc)218 hp (160 kW)1980–1981M535i★★★★½ [PROVISIONAL]-(pattern data)£4,000–£7,000 [BMW-QUOTE]

M88/1M88Petrol3.5L (3,453 cc)276–277 hp (203–204 kW)1979–1981M535i (South Africa)★★★★½ [PROVISIONAL]-(pattern data)£5,000–£10,000 [BMW-QUOTE]

Engine CodeFuelPowerYearsReliabilityEnquiriesAvg. Recon Cost

M10B18M10Petrol90 hp (66 kW)1974–1981★★★★☆ [PROVISIONAL]-(pattern data)£1,200–£2,500 [BMW-QUOTE]

M64M10Petrol125 hp (92 kW)1976–1979★★★★☆ [PROVISIONAL]-(pattern data)£1,500–£3,000 [BMW-QUOTE]

M15M10Petrol115 hp (85 kW)1972–1976★★★★☆ [PROVISIONAL]-(pattern data)£1,500–£3,000 [BMW-QUOTE]

M20B20M20Petrol122 hp (90 kW)1977–1981★★★★☆ [PROVISIONAL]-(pattern data)£1,800–£3,500 [BMW-QUOTE]

M30B25M30Petrol145–150 hp (107–110 kW)1973–1981★★★★☆ [PROVISIONAL]-(pattern data)£2,000–£4,000 [BMW-QUOTE]

M30B28M30Petrol165–177 hp (121–130 kW)1974–1981★★★★½ [PROVISIONAL]-(pattern data)£2,500–£5,000 [BMW-QUOTE]

M30B30M30Petrol176–188 hp (129–138 kW)1975–1977★★★★☆ [PROVISIONAL]-(pattern data)£2,500–£5,500 [BMW-QUOTE]

M90M30Petrol218 hp (160 kW)1980–1981★★★★½ [PROVISIONAL]-(pattern data)£4,000–£7,000 [BMW-QUOTE]

M88/1M88Petrol276–277 hp (203–204 kW)1979–1981★★★★½ [PROVISIONAL]-(pattern data)£5,000–£10,000 [BMW-QUOTE]

Overview

BMW 5 Series E12 -Overview

The BMW E12, launched in March 1972, is the first generation of the 5 Series and the first BMW to use the "Series" naming convention.

Designed by Paul Bracq, it replaced the New Class saloons and established the executive car formula that BMW still follows today. Initially powered by four-cylinder M10 engines, a year after launch the first six-cylinder models appeared. By the final years of production, most models used the M30 six-cylinder engine.

Key Facts

Platform

BMW E12 (first-generation 5 Series)

Predecessor

BMW New Class sedans

Successor

BMW 5 Series E28

Sibling body styles in this generation

None (E12 was 4-door saloon only)

Market Intelligence

The E12 generated real UK engine enquiries in 2025 [BMW-VERIFIED], with the M30B28 (528i) and M90 (M535i) accounting for the majority of demand as these cars enter classic collector territory.

BMW 5 Series E12 -Overview

The BMW E12, launched in March 1972, is the first generation of the 5 Series and the first BMW to use the "Series" naming convention.

Designed by Paul Bracq, it replaced the New Class saloons and established the executive car formula that BMW still follows today. Initially powered by four-cylinder M10 engines, a year after launch the first six-cylinder models appeared. By the final years of production, most models used the M30 six-cylinder engine.

Key Facts

Platform

BMW E12 (first-generation 5 Series)

Predecessor

BMW New Class sedans

Successor

BMW 5 Series E28

Sibling body styles in this generation

None (E12 was 4-door saloon only)

Market Intelligence

The E12 generated real UK engine enquiries in 2025 [BMW-VERIFIED], with the M30B28 (528i) and M90 (M535i) accounting for the majority of demand as these cars enter classic collector territory.

Best & Worst Engines

Best Petrol Overall

M30B28 (528i, 1977–1981) – "The 2.8-litre M30 six-cylinder with Bosch L-Jetronic injection delivers 177 hp of smooth, linear power. The 'Big Six' is renowned for its durability – these engines regularly exceed 200,000 miles with proper maintenance. Cooling system and fuel injection are the only real demands."

“”

Who it's for: buyers who want the definitive E12 driving experience.

Highest Risk

M15 (520i, early Kugelfischer injection) – "The early Kugelfischer mechanical fuel injection system is complex and parts are increasingly difficult to source. Injection pump rebuilds are expensive, and carburetted versions of the same engine are simpler but thirstier. The later K-Jetronic cars are more reliable."

“”

Who it's for: only buyers who are comfortable with vintage fuel injection systems.

Most Expensive Failure

M88/1 (South African M535i) – "The M88/1 is a rare and valuable engine – essentially a detuned version of the M1's engine with individual throttle bodies and 276 hp. Parts are extremely expensive and specialist-only. A full rebuild can exceed £10,000."

“”

Who it's for: collectors and enthusiasts with very deep pockets.

Best Value

M10B18 (518, 1974–1981) – "The 1.8-litre four-cylinder is the simplest, cheapest E12 to run and maintain. Carburetted, with no complex injection system to fail, it delivers 90 hp – enough for relaxed cruising and minimal running costs. It's the entry point to E12 ownership."

“”

Who it's for: buyers who want classic E12 style with minimal maintenance headaches.

Most Overlooked

M20B20 (520/6, 1977–1981) – "The 2.0-litre six-cylinder is often overlooked in favour of the M30 cars, but it delivers 122 hp with the smoothness of a six-cylinder and lower running costs than the 2.5-litre. It's the cheapest way into six-cylinder E12 ownership."

“”

Who it's for: buyers who want six-cylinder refinement without the M30's fuel bills.

Best Petrol Overall

M30B28 (528i, 1977–1981) – "The 2.8-litre M30 six-cylinder with Bosch L-Jetronic injection delivers 177 hp of smooth, linear power. The 'Big Six' is renowned for its durability – these engines regularly exceed 200,000 miles with proper maintenance. Cooling system and fuel injection are the only real demands."

“”

Who it's for: buyers who want the definitive E12 driving experience.

Highest Risk

M15 (520i, early Kugelfischer injection) – "The early Kugelfischer mechanical fuel injection system is complex and parts are increasingly difficult to source. Injection pump rebuilds are expensive, and carburetted versions of the same engine are simpler but thirstier. The later K-Jetronic cars are more reliable."

“”

Who it's for: only buyers who are comfortable with vintage fuel injection systems.

Most Expensive Failure

M88/1 (South African M535i) – "The M88/1 is a rare and valuable engine – essentially a detuned version of the M1's engine with individual throttle bodies and 276 hp. Parts are extremely expensive and specialist-only. A full rebuild can exceed £10,000."

“”

Who it's for: collectors and enthusiasts with very deep pockets.

Best Value

M10B18 (518, 1974–1981) – "The 1.8-litre four-cylinder is the simplest, cheapest E12 to run and maintain. Carburetted, with no complex injection system to fail, it delivers 90 hp – enough for relaxed cruising and minimal running costs. It's the entry point to E12 ownership."

“”

Who it's for: buyers who want classic E12 style with minimal maintenance headaches.

Most Overlooked

M20B20 (520/6, 1977–1981) – "The 2.0-litre six-cylinder is often overlooked in favour of the M30 cars, but it delivers 122 hp with the smoothness of a six-cylinder and lower running costs than the 2.5-litre. It's the cheapest way into six-cylinder E12 ownership."

“”

Who it's for: buyers who want six-cylinder refinement without the M30's fuel bills.

BMW 5 Series E12 -Ownership Economics

EngineTypical MileageCommon Major FailureRepair Cost (Specialist)Replacement Cost (Recon)Ownership Verdict

M10B18 (518)80k–150kCarburettor, cooling system£200–£500£1,200–£2,500

Solid – simplest E12, cheap to run.

M15/M64 (520i)80k–150kKugelfischer/K-Jetronic injection£400–£1,000£1,500–£3,000

Watch – injection systems are complex.

M20B20 (520/6)80k–150kTiming belt, water pump£300–£600£1,800–£3,500

Solid – belt-driven six; replace belt on schedule.

M30B25 (525)80k–200kCooling system, carburettor£300–£600£2,000–£4,000

Solid – bulletproof six, simple carb.

M30B28 (528)80k–200kCooling system, fuel injection£300–£700£2,500–£5,000

Solid – the definitive E12 engine.

M30B28 (528i)80k–200kCooling system, L-Jetronic£300–£700£2,500–£5,000

Best Petrol – reliable, proven, well-supported.

M30B30 (530i)80k–200kCooling system, thermal reactor£400–£800£2,500–£5,500

Watch – US-spec thermal reactors run hot.

M90 (M535i)60k–120kCooling system, injection£500–£1,000£4,000–£7,000

Collectable – rare and desirable; budget for maintenance.

M88/1 (SA M535i)40k–80kValves, timing chain, injection£1,000–£2,500£5,000–£10,000

Expensive – M1-derived engine; serious specialist territory.

EngineTypical MileageCommon Major FailureRepair Cost (Specialist)Replacement Cost (Recon)Ownership Verdict

M10B18 (518)80k–150kCarburettor, cooling system£200–£500£1,200–£2,500

Solid – simplest E12, cheap to run.

M15/M64 (520i)80k–150kKugelfischer/K-Jetronic injection£400–£1,000£1,500–£3,000

Watch – injection systems are complex.

M20B20 (520/6)80k–150kTiming belt, water pump£300–£600£1,800–£3,500

Solid – belt-driven six; replace belt on schedule.

M30B25 (525)80k–200kCooling system, carburettor£300–£600£2,000–£4,000

Solid – bulletproof six, simple carb.

M30B28 (528)80k–200kCooling system, fuel injection£300–£700£2,500–£5,000

Solid – the definitive E12 engine.

M30B28 (528i)80k–200kCooling system, L-Jetronic£300–£700£2,500–£5,000

Best Petrol – reliable, proven, well-supported.

M30B30 (530i)80k–200kCooling system, thermal reactor£400–£800£2,500–£5,500

Watch – US-spec thermal reactors run hot.

M90 (M535i)60k–120kCooling system, injection£500–£1,000£4,000–£7,000

Collectable – rare and desirable; budget for maintenance.

M88/1 (SA M535i)40k–80kValves, timing chain, injection£1,000–£2,500£5,000–£10,000

Expensive – M1-derived engine; serious specialist territory.

The E12 rule

A £2,500–£5,000 M30B28 recon against a £3,000–£10,000 E12 sits at 25–167% of the car's value. On a sub-£5,000 example, that brushes our 70% BMW threshold – we'll honestly tell you to walk away unless the car is exceptional. Against a £8,000+ low-mileage example, the same recon drops to a routine 31–63% – a repair decision, not a financial one. For the M535i, values are high enough that even a £7,000 rebuild is a viable investment on a £15,000+ car.

Key Takeaways

Which E12 Costs Least To Own?
M10B18 (518) – simplest engine, cheapest parts.
Which E12 Costs Most To Own?
M88/1 (South African M535i) – rare, complex, expensive parts.
Which E12 Is Best Value?
M30B28 (528i) – the sweet spot between performance and running costs.

Common Problems

01

Cooling

System Vulnerabilities (All Engines)

Affected models:

All E12 petrol variants (1972–1981).

Cooling System Vulnerabilities (All Engines)

Typical failure mileage:

60,000–100,000 miles.

Root cause:

The cooling system is the Achilles heel of the E12 – radiators, water pumps and hoses degrade with age. Overheating can lead to head gasket failure on both four- and six-cylinder engines. The 530i's thermal reactor (US-spec) generates significant heat, accelerating cooling system wear.

Tiered Cost Table

Preventative (Repair)

Dealer

Specialist

£800–£1,500

£300–£700

Catastrophic (Replacement)

Dealer

Specialist

£4,000–£8,000

£1,200–£2,500

Our Recommendation

On any E12, replace the radiator, water pump and thermostat proactively – £300–£700 now is cheap insurance against a £1,200+ replacement. The M30 engine is famously durable, but the cooling system will kill it if neglected.

Compare E12 cooling system repair quotes for your BMW 5 Series

02

Fuel

Injection System Issues (520i, 528i, 530i, M535i)

Affected models:

E12 fuel-injected models (520i, 528i, 530i, M535i).

Fuel Injection System Issues (520i, 528i, 530i, M535i)

Typical failure mileage:

60,000–100,000 miles.

Root cause:

The early Kugelfischer mechanical injection (1972–1976) is complex and parts are scarce. The later K-Jetronic (1976–1979) and L-Jetronic (1979–1981) systems are more reliable but still suffer from fuel distributor wear, injector clogging and vacuum leaks. The combination relay that controls the fuel pump is a common failure point.

Tiered Cost Table

Preventative (Repair)

Dealer

Specialist

£800–£1,500

£400–£1,000

Catastrophic (Replacement)

Dealer

Specialist

£4,000–£8,000

£1,500–£3,000

Our Recommendation

If your E12 has running issues, start with the fuel pump relay and grounds – a £50 repair is far cheaper than a £400+ injection rebuild. For Kugelfischer cars, specialist help is essential.

Compare E12 fuel injection repair quotes for your BMW 5 Series

03

M20

Timing Belt Failure (520/6)

Affected models:

E12 520/6 (M20B20, 1977–1981).

Typical failure mileage:

40,000–60,000 miles (interval-dependent).

Root cause:

The M20 six-cylinder uses a rubber timing belt – if it fails, the pistons strike the valves, destroying the engine. This is the single most critical maintenance item on any M20 engine. The M10 and M30 engines use timing chains, which are less prone to catastrophic failure.

Tiered Cost Table

Preventative (Repair)

Dealer

Specialist

£600–£1,000

£300–£600

Catastrophic (Replacement)

Dealer

Specialist

£4,000–£6,000

£1,800–£3,500

Our Recommendation

If you own an E12 520/6, treat the timing belt as a service item with a hard 40,000-mile or 4-year interval – £300–£600 now is dramatically cheaper than the £1,800+ replacement that follows a failure.

Compare E12 timing belt replacement quotes for your BMW 5 Series

04

Electrical

& Grounding Issues (All Models)

Affected models:

All E12 variants (1972–1981).

Electrical & Grounding Issues (All Models)

Typical failure mileage:

Age-related, not mileage-dependent.

Root cause:

The E12's electrical system is sensitive to corroded grounds and aging wiring. Common issues include the fuel pump relay, alternator ground, and fuel injection grounds above the valve cover. These can cause random cutting out, starting issues and rough running.

Tiered Cost Table

Preventative (Repair)

Dealer

Specialist

£400–£800

£200–£500

Catastrophic (Replacement)

Dealer

Specialist

£4,000–£6,000

£1,200–£2,500

Our Recommendation

Check all grounds annually – the negative battery strap, alternator ground, and injection grounds. A £200–£500 electrical service is cheap insurance against a £1,200+ replacement.

Compare E12 electrical diagnosis quotes for your BMW 5 Series

E12 Engine Replacement Costs -By Engine and Condition

VariantEngine CodeUsed (Supply)Reconditioned (Supply)Rebuilt (Supply)Labour Hours

518M10B18£500–£1,200£1,200–£2,500£2,000–£3,5008–12 hrs

520i (early)M15£600–£1,500£1,500–£3,000£2,500–£4,0008–12 hrs

520i (late)M64£600–£1,500£1,500–£3,000£2,500–£4,0008–12 hrs

520/6M20B20£800–£1,800£1,800–£3,500£3,000–£5,00010–14 hrs

525M30B25£800–£2,000£2,000–£4,000£3,500–£5,50010–14 hrs

528M30B28£1,000–£2,500£2,500–£5,000£4,000–£6,50010–14 hrs

528iM30B28£1,000–£2,500£2,500–£5,000£4,000–£6,50010–14 hrs

530iM30B30£1,200–£2,800£2,500–£5,500£4,500–£7,00010–14 hrs

M535iM90£2,000–£4,000£4,000–£7,000£6,500–£9,50012–16 hrs

M535i (SA)M88/1£3,000–£6,000£5,000–£10,000£8,000–£15,00014–18 hrs

Core Variants

Diesel & Petrol Lineup

Petrol Variants

518520520i520/6525528528i530iM535i

Scope note: All variants listed are E12 only. The E28 (1981–1987) is the successor generation with its own engine line-up – see the E28 Generation Page for those specifications. The M535i is the precursor to the M5, not an M5 itself – no official M5 was produced in the E12 generation.

Diesel & Petrol Lineup

Petrol Variants

518520520i520/6525528528i530iM535i

Scope note: All variants listed are E12 only. The E28 (1981–1987) is the successor generation with its own engine line-up – see the E28 Generation Page for those specifications. The M535i is the precursor to the M5, not an M5 itself – no official M5 was produced in the E12 generation.

Market Intelligence

Most Requested E90 Engines (2025)

1.1. M30B28 (528/528i) – the definitive six-cylinder, highest enquiries
2.2. M90 (M535i) – collector and performance enquiries
3.3. M10B18 (518) – entry-level classic enquiries [PATTERN DATA].

Most Requested E90 Variants

1.1. 528i
2.2. M535i
3.3. 520i [PATTERN DATA].

Average E90 Replacement Cost

£1,200–£10,000 supply only [BMW-QUOTE].

Most Common E90 Failures

1.1. Cooling system failures (all engines)
2.2. Fuel injection system issues (520i, 528i, 530i, M535i)
3.3. M20 timing belt failure (520/6) [PATTERN DATA].

Live Feed

VehicleLocationIssueEnquiries

BMW 528i (M30B28)

Birmingham

Overheating enquiry

4

enquiries

BMW M535i (M90)

London

Fuel injection running rich

2

enquiries

BMW 520/6 (M20B20)

Manchester

Timing belt service

2

enquiries

Updated Monthly

FAQ

BMW 3 Series E90 rear three-quarter view

Why UK BMW 5 Series E12 Owners Trust BMWEngines.uk

Trusted E12 Engine Suppliers
every garage and engine rebuilder in our network is vetted, rated and reviewed by real E12 owners, as part of the Engine Finders network.
Compare E12 Engine Replacement Companies
see prices, warranty terms and supply & fit options side-by-side before you commit.
UK Engine Replacement Services for E12
covering every variant from 518 to M535i, with supply-only or full supply & fit available nationwide.

Find the best BMW 5 Series E12 engine replacement UK drivers rely on. Compare real prices from trusted specialists on EnginesMarket today and get back on the road with confidence.

Compare BMW 5 Series E12 Engine Prices on EnginesMarket

Why UK BMW 5 Series E12 Owners Trust BMWEngines.uk

Trusted E12 Engine Suppliers
every garage and engine rebuilder in our network is vetted, rated and reviewed by real E12 owners, as part of the Engine Finders network.
Compare E12 Engine Replacement Companies
see prices, warranty terms and supply & fit options side-by-side before you commit.
UK Engine Replacement Services for E12
covering every variant from 518 to M535i, with supply-only or full supply & fit available nationwide.

Find the best BMW 5 Series E12 engine replacement UK drivers rely on. Compare real prices from trusted specialists on EnginesMarket today and get back on the road with confidence.

Compare BMW 5 Series E12 Engine Prices on EnginesMarket

BMW 5 Series E12 Engines -The Complete UK Guide

BMW 5 Series E12 Engine Codes -The Complete Database

BMW 5 Series E12 -Overview

BMW 5 Series E12 -Overview

Best &amp; Worst Engines

BMW 5 Series E12 -Ownership Economics

Common Problems

E12 Engine Replacement Costs -By Engine and Condition

Diesel &amp; Petrol Lineup

Diesel &amp; Petrol Lineup

Market Intelligence

FAQ

Why UK BMW 5 Series E12 Owners Trust BMWEngines.uk

Why UK BMW 5 Series E12 Owners Trust BMWEngines.uk

Best & Worst Engines

Diesel & Petrol Lineup

Diesel & Petrol Lineup