Engine Family
M156
The Mercedes M156 is AMG's first clean-sheet V8 – a high-revving naturally aspirated icon, but head bolt and camshaft wear are well-documented weaknesses. Backed by real UK enquiries [MB-VERIFIED].

All the essential specifications, performance data, and compatibility information at a glance.
Engine Family
M156
Fuel
Petrol
Configuration /
Displacement
90° V8, 6.2L (6,208 cc)
Power Range
451–518 hp
Years Produced
2006–2015
Models Fitted (BMW only)
Cross-Brand Fitment
Exclusive to Mercedes-Benz
Overall Engine Score
[Score]/100/
Rating:
5
[X% confidence – based on [X] UK enquiries and cross-referenced specialist rebuild reports]
The M156 delivers thrilling naturally aspirated V8 character – but head bolt failure and camshaft wear can be ruinous without preventative work – buy only with documented head bolt and camshaft history.
Engine Score breakdown:
Reliability
Star rating × 4 (Repair Cost)
0 /20
Based on reconditioned cost midpoint
Repairability (Editorial (20/12/4 anchored))
0 /20
Parts Supply
Editorial (20/12/4 anchored) (Replacement Economics)
0 /20
Based on recon cost vs lowest host value
Total (X/100)
0 /20
Total Engine Score
0 / 100
Best for:
Enthusiasts seeking the last great naturally aspirated AMG V8 with proper maintenance records.
Avoid if:
No documented evidence of head bolt update (2011+ models exempt) or camshaft/lifter inspection.
Jaguar Engine engines are fitted across 8+ models from 2006–2015.
Jaguar Exclusive Engine
This is an exclusive Jaguar engine. No cross-platform sharing.
C63
AMG
Generation
W204Variant/Badge
63 AMG
Years
2008–2015
E63
AMG
Generation
W211Variant/Badge
63 AMG
Years
2006–2009
E63
AMG
Generation
W212Variant/Badge
63 AMG
Years
2009–2011
ML63
AMG
Generation
W164Variant/Badge
63 AMG
Years
2006–2011
CLS63
AMG
Generation
W219Variant/Badge
63 AMG
Years
2006–2010
S63
AMG
Generation
W221Variant/Badge
63 AMG
Years
2006–2010
CL63
AMG
Generation
C216Variant/Badge
63 AMG
Years
2006–2010
CLK63
AMG
Generation
C209Variant/Badge
63 AMG
Years
2006–2009
R63
AMG
Generation
W251Variant/Badge
63 AMG
Years
2006–2007
Other Jaguar Models
Engine also appears in limited variants and markets.
Compatibility Verified
All compatibility data verified from Jaguar parts catalogues and specialist databases. [JAGUAR-VERIFIED]
(Omitted – exclusive to Mercedes-Benz.)
All prices are estimates from UK specialists [JAGUAR-QUOTE]
Fitting an M156 typically takes 12–18 hours at £65–£95/hr (independent) or £110–£160/hr (London/SE dealer) [MB-QUOTE].
(Omitted – exclusive to Mercedes-Benz.)
USED
Supply Only
£3,000–£5,500
Fitted (Indie)
£4,500–£7,500
RECONDITIONED
Supply Only
£5,500–£8,000
Fitted (Indie)
£7,000–£9,500
REBUILT
Supply Only
£7,500–£12,000
Fitted (Indie)
£9,000–£14,000
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All prices are estimates from UK specialists
[JAGUAR-QUOTE]
USED
Supply Only
£3,000–£5,500
Fitted (Indie)
£4,500–£7,500
Warranty
3–6 monthsRECONDITIONED
Supply Only
£5,500–£8,000
Fitted (Indie)
£7,000–£9,500
Warranty
12 monthsREBUILT
Supply Only
£7,500–£12,000
Fitted (Indie)
£9,000–£14,000
Warranty
12–24 monthsFitting an M156 typically takes 12–18 hours at £65–£95/hr (independent) or £110–£160/hr (London/SE dealer) [MB-QUOTE].
(Omitted – exclusive to Mercedes-Benz.)
Expert answers to the most common BMW Engine engine questions.
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