How much does a BMW M3 G80/G81 engine replacement cost in the UK?

A reconditioned G80/G81 engine typically costs £6,000–£16,000 supply only [BMW-QUOTE], depending on variant -the base S58 sits at £6,000–£10,000, the Competition at £7,000–£13,000, and the M3 CS at £10,000–£16,000. Fitting adds £910–£1,300. Use our calculator for a personalised figure.

Which BMW M3 G80/G81 engine is the most reliable?

The S58 engine is robust and over-engineered for its stock outputs, making it one of BMW's most reliable modern M engines. All variants share the same robust architecture -the key is regular maintenance, especially cooling system health and oil monitoring. The base 480 PS manual is the simplest mechanically.

What are the common problems with the BMW M3 G80/G81?

Common issues include: cooling system sensitivity (overheating if neglected); mild oil consumption under spirited driving; turbocharger and sensor wear on hard-driven examples; and driveline wear on Competition xDrive models (tyres, alignment, transfer case). Carbon-ceramic brake replacements (if specified) are very expensive.

Is the BMW M3 G80/G81 reliable?

Overall, yes -the S58 is widely regarded as one of BMW's best M engines for reliability. Unlike earlier engines like the S65 (V8) or S55, the S58 has far fewer systemic failures. The key is regular maintenance, proper warm-up and cool-down procedures, and monitoring oil and coolant levels.

Which G80/G81 engine should I avoid?

We don't recommend outright avoidance -but the base 480 PS manual is the least powerful and may feel underpowered compared to the Competition models. The M3 CS is a limited-run collectible with the highest replacement cost, but it's a special car. For most buyers, the Competition xDrive strikes the best balance.

How do I know if my G80/G81 engine needs replacing?

Key warning signs: overheating or coolant loss; excessive oil consumption; turbo lag or wastegate rattle; warning lights or loss of power; unusual engine noise under load. Use our diagnostic guide to identify the specific symptoms.

How long do BMW M3 G80/G81 engines last?

The S58 can exceed 150,000 miles with proper servicing and monitoring. Cooling system health is critical -replace coolant and inspect radiators regularly. Oil changes at 10,000–12,000 miles are recommended, especially for tracked cars. The engine is over-engineered from the factory and capable of high mileage.

What is the difference between the G80 and G81?

The G80 is the M3 saloon (4-door), launched in 2020. The G81 is the M3 Touring (5-door estate), launched in 2022 -the first-ever production M3 estate. Both share the same engine lineup and platform. The G81 is only available in Competition xDrive specification, while the G80 is offered in base manual, Competition RWD, and Competition xDrive forms.

How do I find my BMW M3 G80/G81 engine code?

Listed on the VIN plate and vehicle documentation; block stamping is on the block face below the inlet manifold. The S58 engine code is stamped near the engine block's front right side. Tell us your registration and we'll identify it -20+ vetted BMW specialists will confirm it for free.

BMW M3 G80/G81Saloon/Touring2020–present

BMW M3 G80/G81 Engines — The Complete UK Guide

Every engine fitted to the sixth-generation M3 — from the 480 bhp S58 straight-six in the base manual to the 523 bhp Competition M xDrive and the limited-run M3 CS.

Real UK replacement costs, honest reliability data, and the cooling system and oil consumption issues that define this generation's ownership story.

Backed by real UK enquiry data [PATTERN DATA].

Explore G80/G81 Engines

G80/G81 Enquiries (Pattern Data)
Saloon/Touring
7+Engine Codes
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G80/G81 Enquiries (Pattern Data)
Saloon/TouringBody Style
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Engine Database

BMW M3 G80/G81 Engine Codes — The Complete Database

Every engine fitted to the G80 and G81 — from the 2020 launch to the present, including the 2024 LCI power bumps and the limited-edition CS variants.

Engine CodeFuelPowerYearsReliabilityEnquiries (2025)Avg. Recon Cost

S58B30S58PetrolTwin-turbo480 PS (473 bhp) / 550 Nm2020–present★★★★☆PROVISIONALpending dedicated Engine Page—(pattern data)£6,000–£10,000[BMW-QUOTE]

S58B30AS58PetrolTwin-turbo510 PS (503 bhp) / 650 Nm2020–2024★★★★☆PROVISIONALpending dedicated Engine Page—(pattern data)£7,000–£12,000[BMW-QUOTE]

S58B30AS58PetrolTwin-turbo510 PS (503 bhp) / 650 Nm2021–2024★★★★☆PROVISIONALpending dedicated Engine Page—(pattern data)£7,500–£12,500[BMW-QUOTE]

S58B30T0 (LCI)S58PetrolTwin-turbo530 PS (523 bhp) / 650 Nm2024–present★★★★☆PROVISIONALpending dedicated Engine Page—(pattern data)£7,500–£13,000[BMW-QUOTE]

S58B30T0S58PetrolTwin-turbo550 PS (543 bhp) / 650 Nm2024★★★☆☆PROVISIONALpending dedicated Engine Page—(pattern data)£10,000–£16,000[BMW-QUOTE]

S58B30T0S58PetrolTwin-turbo530 PS (523 bhp) / 650 Nm2022–present★★★★☆PROVISIONALpending dedicated Engine Page—(pattern data)£7,500–£13,000[BMW-QUOTE]

Overview

BMW M3 G80/G81 — Overview

The G80 is the sixth generation of the BMW M3, a high-performance sports saloon unveiled in September 2020 and based on the G20 3 Series platform. For the first time in M3 history, a Touring (estate) variant — the G81 — was introduced in June 2022. Both body styles are powered exclusively by the S58 3.0-litre twin-turbocharged inline-six engine, available in outputs ranging from 480 PS (473 bhp) to 530 PS (523 bhp), with a limited-run M3 CS producing 550 PS (543 bhp).

Transmission options include a 6-speed manual (base model only) and an 8-speed M Steptronic automatic, with M xDrive all-wheel drive available on Competition models. A 2024 Life Cycle Impulse (LCI) facelift brought a power increase for xDrive models to 530 PS.

Key Facts

PlatformBMW CLAR (G20-based)
PredecessorF80
SuccessorTBA
Sibling Body Styles in this GenerationG80 (4-door saloon), G81 (5-door Touring)

Market Intelligence

The G80/G81 M3 remains a highly sought-after performance car in the UK, with strong demand for the Competition xDrive and the Touring variant【PATTERN DATA】.

04Best & Worst Engines

Best & Worst Engines

Thin-Data Summary

Thin-Data Fallback mode — exactly one paragraph: The S58 engine is a masterpiece of modern M engineering — robust, over-engineered for its stock outputs, and widely regarded as one of BMW's most reliable performance engines. The sweet spot in the range is the Competition xDrive with the LCI power bump to 530 PS — blistering performance (0–100 km/h in 3.5 seconds) with the security of all-wheel drive and the option of rear-wheel-drive-only drifting. The base manual M3 (480 PS) is the purist's choice, offering the last chance at a stick-shift M3 before electrification takes over. The M3 CS is a limited-run track weapon with 550 PS, but it commands a significant premium and is harder to find. The G81 Touring is the most practical M3 ever built, combining supercar performance with estate car utility — and it's only available in Competition xDrive guise. All S58 variants are reliable when properly maintained, though cooling system health and regular oil monitoring are essential.

Thin-Data Summary

BMW M3 G80/G81
Ownership Economics

Engine

Typical Mileage

Common Major Failure

Repair Cost (Specialist)

Replacement Cost (Recon)

Ownership Verdict

S58B30 (Base, 480 PS)20k–60kCooling system; oil consumption£500–£1,500£6,000–£10,000

Purist Choice -manual gearbox, RWD, but underpowered compared to Competition.

S58B30A (Comp RWD, 510 PS)20k–60kCooling system; oil consumption£500–£1,500£7,000–£12,000

Performance Choice -510 PS, 8AT, RWD driving thrills.

S58B30A (Comp xDrive, 510 PS)20k–60kCooling system; oil consumption; driveline£600–£1,800£7,500–£12,500

Best All-Rounder -xDrive traction with RWD mode.

S58B30T0 (LCI xDrive, 530 PS)20k–60kCooling system; oil consumption£600–£1,800£7,500–£13,000

Flagship -more power, same proven S58 reliability.

S58B30T0 (G81 Touring, 510–530 PS)20k–60kCooling system; oil consumption£600–£1,800£7,500–£13,000

Most Practical M3 -estate body, supercar performance.

S58B30T0 (M3 CS, 550 PS)10k–30kCooling system; track wear£1,000–£2,500£10,000–£16,000

Collector's Item -limited-run, track-focused, expensive to maintain.

Engine

Typical Mileage

Common Major Failure

Repair Cost (Specialist)

Replacement Cost (Recon)

Ownership Verdict

S58B30 (Base, 480 PS)20k–60kCooling system; oil consumption£500–£1,500£6,000–£10,000

Purist Choice -manual gearbox, RWD, but underpowered compared to Competition.

S58B30A (Comp RWD, 510 PS)20k–60kCooling system; oil consumption£500–£1,500£7,000–£12,000

Performance Choice -510 PS, 8AT, RWD driving thrills.

S58B30A (Comp xDrive, 510 PS)20k–60kCooling system; oil consumption; driveline£600–£1,800£7,500–£12,500

Best All-Rounder -xDrive traction with RWD mode.

S58B30T0 (LCI xDrive, 530 PS)20k–60kCooling system; oil consumption£600–£1,800£7,500–£13,000

Flagship -more power, same proven S58 reliability.

S58B30T0 (G81 Touring, 510–530 PS)20k–60kCooling system; oil consumption£600–£1,800£7,500–£13,000

Most Practical M3 -estate body, supercar performance.

S58B30T0 (M3 CS, 550 PS)10k–30kCooling system; track wear£1,000–£2,500£10,000–£16,000

Collector's Item -limited-run, track-focused, expensive to maintain.

The G80/G81 rule

A £10,000 S58 recon against a £50,000 M3 sits at 20% -well within our 70% BMW threshold. Even the M3 CS's £16,000 recon against a £80,000 car is just 20%. Unlike older M cars, the G80's high retained value means engine replacement is almost always financially viable. Value the car first -but on a modern M3, a recon is usually a repair decision, not a financial one.

Key Takeaways

Which G80/G81 Costs Least To Own?
Base M3 (480 PS) -cheaper to buy, simpler manual transmission, but lower performance.
Which G80/G81 Costs Most To Own?
M3 CS -limited production, track-focused components, higher replacement costs.
Which G80/G81 Is Best Value?
M3 Competition xDrive -the sweet spot of performance, traction, and daily usability.

Common Problems

S58

Cooling System Sensitivity

Affected models:

All G80/G81 M3 variants (S58 engine).

Typical failure mileage:

20,000–60,000 miles.

Root cause:

High-performance engines generate significant heat -the radiators, intercoolers, and coolant systems must be in top condition. The S58 is designed to run hot, and any cooling system weakness can lead to overheating and severe engine damage.

Tiered Cost Table

Preventative (Repair)

Dealer

Specialist

£800–£1,500

£500–£1,200

Coolant system inspection; radiator flush; water pump check

Yes -essential preventative maintenance

Catastrophic (Replacement)

Dealer

Specialist

£10,000–£15,000

£7,000–£12,000

Full reconditioned S58 engine

Often 15–25% of M3 value

Our Recommendation

Have the cooling system inspected at every service -a £500–£1,200 preventative check is far cheaper than the £7,000–£12,000 engine replacement that follows an overheating failure. Monitor the temperature gauge closely during spirited driving.

Compare S58 engine prices for your M3

S58

Oil Consumption

Affected models:

All G80/G81 M3 variants (S58 engine).

Typical failure mileage:

10,000–60,000 miles.

Root cause:

Some owners report mild oil usage under spirited driving. This can be a result of the engine's design and driving habits. Higher-mileage examples can occasionally develop ignition coil or turbo actuator issues.

Tiered Cost Table

Preventative (Repair)

Dealer

Specialist

£200–£500

£150–£400

Oil top-up; oil analysis; regular monitoring

Yes -routine maintenance

Catastrophic (Replacement)

Dealer

Specialist

£10,000–£15,000

£7,000–£12,000

Full reconditioned S58 engine

Often 15–25% of M3 value

Our Recommendation

Check oil levels regularly, especially after track days or spirited driving. Use the correct BMW-approved oil grade and monitor consumption -if it exceeds 1 litre per 1,000 miles, have the engine inspected.

Compare S58 engine oil service prices for your M3

Turbocharger

and Sensor Issues

Affected models:

All G80/G81 M3 variants (S58 engine), particularly hard-driven examples.

Typical failure mileage:

20,000–60,000 miles.

Root cause:

While the S58 is generally reliable, hard-driven examples may show turbocharger wear earlier. Reports include turbo lag, wastegate rattle, and occasionally turbo failure. Modern BMWs rely heavily on sensors, and occasional warning lights or software glitches are not uncommon.

Tiered Cost Table

Preventative (Repair)

Dealer

Specialist

£1,200–£2,500

£800–£2,000

Turbo inspection; sensor replacement; software update

Yes -cheap insurance

Catastrophic (Replacement)

Dealer

Specialist

£10,000–£15,000

£7,000–£12,000

Full reconditioned S58 engine

Often 15–25% of M3 value

Our Recommendation

At the first sign of turbo lag, wastegate rattle, or warning lights, have the turbos and sensors inspected immediately -an £800–£2,000 preventative repair is far cheaper than the £7,000–£12,000 engine replacement that follows a major turbo failure.

Compare S58 turbo repair prices for your M3

xDrive Driveline Wear (Competition xDrive models)

Affected models:

G80/G81 M3 Competition xDrive and G81 Touring.

Typical failure mileage:

20,000–50,000 miles.

Root cause:

The M xDrive system adds significant traction and performance but also adds complexity and potential wear points. Tyre wear is accelerated by aggressive alignment and power delivery. Carbon-ceramic brake replacements (if specified) are very expensive.

Tiered Cost Table

Preventative (Repair)

Dealer

Specialist

£800–£2,000

£500–£1,500

Tyre rotation; alignment; driveline inspection

Yes -routine maintenance

Catastrophic (Replacement)

Dealer

Specialist

£4,000–£7,000

£3,000–£5,500

Transfer case or differential replacement

Often 10–20% of M3 value

Our Recommendation

On any M3 Competition xDrive, have the driveline inspected at every service -a £500–£1,500 preventative check is far cheaper than the £3,000–£5,500 replacement that follows a transfer case failure.

Compare M3 xDrive driveline repair quotes

G80/G81
Engine Replacement Costs -By Engine and Condition

Variant

Engine Code

Used (Supply)

Reconditioned (Supply)

Rebuilt (Supply)

Labour Hours

M3 Base (480 PS)S58B30£3,500–£6,000£6,000–£10,000£9,000–£14,00014–18 hrs

M3 Competition (510 PS)S58B30A£4,000–£7,000£7,000–£12,000£10,000–£16,00014–18 hrs

M3 Competition xDrive (510 PS)S58B30A£4,500–£7,500£7,500–£12,500£11,000–£17,00014–18 hrs

M3 Competition xDrive LCI (530 PS)S58B30T0£4,500–£8,000£7,500–£13,000£11,000–£18,00014–18 hrs

M3 Competition Touring G81S58B30T0£4,500–£8,000£7,500–£13,000£11,000–£18,00014–18 hrs

M3 CSS58B30T0£6,000–£10,000£10,000–£16,000£15,000–£22,00016–20 hrs

No Generation variance note required -no Engine Page baseline exists for the S58 yet. Costs are sourced from UK specialist suppliers [BMW-QUOTE].

Diesel & Petrol Lineup

Petrol Variants

Scope note: All variants listed are BMW M3 G80/G81 only. The G81 Touring is only available in Competition xDrive specification. The base M3 (480 PS) is only available with a 6-speed manual transmission and rear-wheel drive. The M3 CS is a limited-production variant.

Market Intelligence

Most Requested Engines (2025)

Most Requested Variants

Average Replacement Cost

Most Common Failures

Most Requested Engines (2025)

Most Requested Variants

Average Replacement Cost

Most Common Failures

Most Requested Engines (2025)

Most Requested Variants

Average Replacement Cost

Most Common Failures

Diesel & Petrol Lineup

Petrol Variants

Market Intelligence

Most Requested Engines (2025)

Most Requested Variants

Average Replacement Cost

Most Common Failures

Most Requested Engines (2025)

Most Requested Variants

Average Replacement Cost

Most Common Failures

Most Requested Engines (2025)

Most Requested Variants

Average Replacement Cost

Most Common Failures

FAQ

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BMW M3 G80/G81 Engines — The Complete UK Guide

BMW M3 G80/G81 Engine Codes — The Complete Database

BMW M3 G80/G81 — Overview

Best & Worst Engines

BMW M3 G80/G81 Ownership Economics

Common Problems

G80/G81Engine Replacement Costs -By Engine and Condition

Diesel & Petrol Lineup

Market Intelligence

Diesel & Petrol Lineup

Market Intelligence

FAQ

Why UK BMW M3 G80/G81 OwnersTrust BMWEngines.uk

BMW M3 G80/G81
Ownership Economics

G80/G81
Engine Replacement Costs -By Engine and Condition

Why UK BMW M3 G80/G81 Owners
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