How much does an M112 engine replacement cost?

A reconditioned M112 typically costs £1,200–£2,200 supply only, varying by displacement and specific variant. Fitting adds £800–£1,200 depending on labour rates. Use our calculator for a figure specific to your car.

Is the Mercedes M112 a reliable engine?

Yes — the M112 is widely regarded as one of Mercedes' most durable V6 engines, rated 4.0★ out of 5. It suffers few major failures, and most issues are cheap, well-understood repairs.

What is the most common M112 failure?

The most common failure is the crank pulley rubber disintegrating — a cheap, straightforward fix. Oil leaks from valve cover breathers (PCV system) are also reported.

Which Mercedes models use the M112?

The M112 powered a wide range of Mercedes models including the C-Class (W202/W203), E-Class (W210/W211), S-Class (W220), CLK, SLK, M-Class, G-Class, and Viano/Vito, plus the Chrysler Crossfire.

How long does the M112 last?

With proper maintenance — regular oil changes and crank pulley inspections — the M112 is capable of 200,000+ miles. It is considered significantly more durable than its M272 successor.

Mercedes-BenzM112PetrolV61998–2015

Mercedes-Benz M112 Engine – Specs, Reliability & Replacement Cost

The Mercedes M112 is Mercedes' first V6 – a durable, smooth petrol six, but its crank pulley and oil leaks are well-known. Backed by enquiry data from EnginesMarket.co.uk.

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Mercedes-Benz M112 Engine – Specs, Reliability & Replacement Cost

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Enquiry Data Available
20+
Models
Fitted
86/100
Engine
Score
Part of Engine Finders

Jaguar Mercedes-Benz M112 Engine Overview

All the essential specifications, performance data, and compatibility information at a glance.

Engine Family

Mercedes-Benz M112

Fuel

Petrol

Power Range

168–354 hp

Overall Engine Score

86/100

★★★★☆

Configuration / Displacement

V6, 2.4L–3.7L

Modern turbodiesel four-cylinder engine with proven architecture.

Years Produced

1998–2015

Over a decade of production and continuous development.

Models Fitted (BMW only)

Fitted across a wide range of BMW vehicles and body styles.

Cross-Brand Fitment

Also fitted to Chrysler Crossfire

The N47 engine is engineered exclusively for BMW vehicles.

BMW-Verified Data

Verified using real UK enquiries and workshop data.

Real-World Insights

Based on 1,450+ UK enquiries in 2025.

Trusted by Enthusiasts

Part of Engine Finders - UK's leading engine specialists.

Quality You Can Trust

Every engine is checked, inspected and quality assured.

Engine Family

Mercedes-Benz M112

Fuel

Petrol

Configuration /
Displacement

V6, 2.4L–3.7L

Power Range

168–354 hp

Years Produced

1998–2015

Models Fitted (BMW only)

Cross-Brand Fitment

Also fitted to Chrysler Crossfire

Overall Engine Score

86/100

★★★★☆

Verdict & Rating

Rating:

out of 5

90% confidence – based on verified specialist rebuild reports and UK workshop consensus.

The M112 is one of Mercedes' most durable V6s – its main weakness is the crank pulley rubber degrading, not internal failure – buy with service history and inspect the pulley.

Best for:

Buyers wanting a smooth, reliable V6 Mercedes without the M272's balance shaft issues.

Avoid if:

You're looking at an early M112 with no documented crank pulley replacement above 80,000 miles.

Engine Score breakdown:

DimensionScore (of 20)

Reliability

4.0★ × 4

16 /20

Repair Cost

Reconditioned supply midpoint under £3,000

20 /20

Repairability

Mostly cheap, well-understood repairs (seals, pulleys, sensors)

16 /20

Parts Supply

Parts cheap and available from multiple UK suppliers

20 /20

Replacement Economics

Recon cost 45–59% of lowest host-vehicle value

14 /20

Total Engine Score

86 / 100

Rating:

out of 5

90% confidence – based on verified specialist rebuild reports and UK workshop consensus.

The M112 is one of Mercedes' most durable V6s – its main weakness is the crank pulley rubber degrading, not internal failure – buy with service history and inspect the pulley.

Engine Score breakdown:

DimensionScore (of 20)

Reliability

4.0★ × 4

16 /20

Repair Cost

Reconditioned supply midpoint under £3,000

20 /20

Repairability

Mostly cheap, well-understood repairs (seals, pulleys, sensors)

16 /20

Parts Supply

Parts cheap and available from multiple UK suppliers

20 /20

Replacement Economics

Recon cost 45–59% of lowest host-vehicle value

14 /20

Total Engine Score

86 / 100

Best for:

Buyers wanting a smooth, reliable V6 Mercedes without the M272's balance shaft issues.

Avoid if:

You're looking at an early M112 with no documented crank pulley replacement above 80,000 miles.

Compatible Jaguar Models

Jaguar Engine engines are fitted across 11+ models from 1996–2015.

Jaguar Exclusive Engine

This is an exclusive Jaguar engine. No cross-platform sharing.

1996

19 Years of Production

2015

C-Class

W202 · W203

C 240 / C 280 · C 240 / C 320

1996–20052 Variants →

E-Class

W210 · W211

E 240 / E 280 / E 320 · E 240 / E 320

1998–20052 Variants →

S-Class

W220

S 280 / S 320

1998–20021 Variants →

CLK-Class

W208 · C208 · C209

CLK 240 / CLK 320

1998–20051 Variants →

SLK-Class

R170

SLK 320

2000–20031 Variants →

M-Class

W163

ML 320

1998–20031 Variants →

G-Class

W463

G 320

1997–20061 Variants →

SL-Class

R129

SL 320

1998–20011 Variants →

Viano

/ Vito

W639

Viano 3.0 / Vito 119

2003–20151 Variants →

32 AMG

W203

C 32 AMG (supercharged)

2001–20041 Variants →

SLK

32 AMG

R170

SLK 32 AMG (supercharged)

2001–20041 Variants →

Other Jaguar Models

Engine also appears in limited variants and markets.

View full details →

Compatibility Verified

All compatibility data verified from Jaguar parts catalogues and specialist databases. [JAGUAR-VERIFIED]

C-Class

Generation

W202

Variant/Badge

C 240 / C 280

Years

1996–2000

C-Class

Generation

W203

Variant/Badge

C 240 / C 320

Years

2000–2005

E-Class

Generation

W210

Variant/Badge

E 240 / E 280 / E 320

Years

1998–2002

E-Class

Generation

W211

Variant/Badge

E 240 / E 320

Years

2000–2005

S-Class

Generation

W220

Variant/Badge

S 280 / S 320

Years

1998–2002

CLK-Class

Generation

W208/C208

Variant/Badge

CLK 240 / CLK 320

Years

1998–2002

CLK-Class

Generation

C209

Variant/Badge

CLK 240 / CLK 320

Years

2002–2005

SLK-Class

Generation

R170

Variant/Badge

SLK 320

Years

2000–2003

M-Class

Generation

W163

Variant/Badge

ML 320

Years

1998–2003

G-Class

Generation

W463

Variant/Badge

G 320

Years

1997–2006

SL-Class

Generation

R129

Variant/Badge

SL 320

Years

1998–2001

Viano

/ Vito

Generation

W639

Variant/Badge

Viano 3.0 / Vito 119

Years

2003–2015

32 AMG

Generation

W203

Variant/Badge

C 32 AMG (supercharged)

Years

2001–2004

SLK

32 AMG

Generation

R170

Variant/Badge

SLK 32 AMG (supercharged)

Years

2001–2004

Other Jaguar Models

Engine also appears in limited variants and markets.

View full details ›

Compatibility Verified

All compatibility data verified from Jaguar parts catalogues and specialist databases. [JAGUAR-VERIFIED]

Also powers the Chrysler Crossfire (2004–2008).

Jaguar Engine Engine Price Guide

All prices are estimates from UK specialists [JAGUAR-QUOTE]

Fitting an M112 typically takes 8–12 hours at £65–£95/hr (independent) or £110–£160/hr (London/SE dealer).

(Exclusive mode – no cross-link)

USED

Supply Only

£400–£900

Fitted (Indie)

£1,000–£1,600

3–6 months

Jaguar Engine Engine Price Guide

All prices are estimates from UK specialists

[JAGUAR-QUOTE]

USED

Supply Only

£400–£900

Fitted (Indie)

£1,000–£1,600

Warranty

3–6 months

Frequently Asked Questions

Expert answers to the most common BMW Engine engine questions.

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