Infiniti M fourth generation

Photo: M 93 / Wikimedia Commons · CC BY-SA 3.0 de

The Infiniti M fourth generation (2011–2013): dimensions, weights, reliability and the official figures of its 26 versions in the European Union, the United Kingdom, France, the United States, and Canada.

Model codes: Y51 · Sold in: United States, Canada, European Union, United Kingdom, and France

Dimensions, weights and capacity

Specification	Europe	North America	Wikipedia
Dimensions
Length	4,950 mm RDW	4,950 mm TC	4,945–5,131 mm
Width	1,845 mm ASTRA	1,850 mm TC	1,845 mm
Height	1,493 mm ASTRA	1,500 mm TC	1,509 mm
Wheelbase	2,900 mm RDW	2,900 mm TC	2,900–3,051 mm
Front track	1,575 mm ASTRA	1,580 mm TC	–
Rear track	1,570 mm ASTRA	1,570 mm TC	–
Weights and towing
Kerb weight	1,615–1,835 kg RDW	1,750–1,881 kg TC	–
Mass in running order	1,715–1,935 kg RDW	–	–
Gross vehicle weight	2,255–2,400 kg RDW	–	–
Towing, braked trailer	1,500–2,000 kg RDW	–	–
Towing, unbraked trailer	750 kg RDW	–	–
Seats and space
Seats	5 RDW	–	–
Doors	4 RDW	–	–
Luggage space (EPA)	–	311–425 L EPA	–
Passenger space (EPA)	–	2,945 L EPA	–
Performance
Top speed	250 km/h ASTRA	–	–
Torque	350–550 Nm ASTRA	–	–

Tyre sizes (most common first): 245/50R18, 245/40R20

NHTSA overall safety rating (US): 2011–2012: ★★★★☆ · 2013: ★★★★★

Ranges cover the generation’s versions and body styles; European and North American versions can differ. Sources: RDW type approvals (Netherlands), Transport Canada vehicle specifications, Wikipedia, ASTRA type approvals (Switzerland), US EPA fuel economy data, NHTSA 5-Star Safety Ratings. Wikipedia figures are used under CC BY-SA 4.0.

Reliability and owner reports

UK MOT: first-time pass rate by age

Age at test	Pass rate	UK average	Tests
9–12 years	82.1% (79.1–84.9)	77.9%	672

What the MOT finds

Area	This model	UK average, same ages
Tyres	27.5%	31.2%
Brakes	27.1%	27.3%
Suspension	24.3%	27.3%
Visibility (glass, mirrors, wipers)	8.3%	8.4%
Lights and electrics	8.0%	17.6%
Body, chassis and structure	6.5%	7.6%

First MOT test of each car per year in 2022–2024, from the DVSA’s anonymised test results; only ages with at least 500 tests are shown. The figure in brackets is the 95% confidence interval; green or red means clearly above or below the UK average. The second table shows how often an item was noted (defect or advisory) in each area, against the UK average for cars of the same ages. DVSA anonymised MOT tests (Open Government Licence)

Owner complaints to NHTSA (US)

106 complaints for model years 2011–2013. 6 crashes · 1 fire · 2 injuries

Transmission and drivetrain 34
Steering 22

Complaints are reported by owners and not checked by NHTSA; they are not adjusted for how many cars were sold, so popular models have more. NHTSA owner complaints

All 26 versions of the Infiniti M fourth generation

Show all 26 versions

European Union 9 versions

New cars registered in the EU (plus Norway and Iceland), from the European Environment Agency. Figures on the NEDC procedure until 2020 and on WLTP from 2021; versions are grouped by engine and power, with their number of registrations.

Years and version	Engine	Power	Fuel	CO₂	EU registrations
2011–2013	3.5 L	225 kW (306 PS)	Petrol	159–162 g/km	1,072
2011–2013	3.0 L	175 kW (238 PS)	Diesel	195–199 g/km	671
2012–2013	–	–	Petrol	159–161 g/km	74
2011–2013	3.7 L	235 kW (320 PS)	Petrol	232–235 g/km	255
2013	3.5 L	225 kW (306 PS)	Other fuel	159 g/km	30
2013	3.0 L	–	Other fuel	199 g/km	26
2013	3.0 L	–	Other fuel	199 g/km	22
2011–2012	3.0 L	175 kW (238 PS)	Diesel	199 g/km	520
2011	3.5 L	225 kW (306 PS)	Electric	162 g/km	10

United Kingdom 3 versions

New cars on sale in the UK, from the Vehicle Certification Agency. NEDC figures until 2018 and WLTP figures after; years are the editions a version appeared in.

Years and version	Engine	Fuel	Gearbox	Consumption (combined)	CO₂
2013M	3.5 L	Petrol	Automatic	6.9 L/100 km NEDC	159 g/km
2012Y51V9X Engine	3.0 L	Diesel	7-speed automatic	7.5 L/100 km NEDC	199 g/km
2012Y514 DDOR	3.7 L	Petrol	7-speed automatic	10.2 L/100 km NEDC	235 g/km

France 4 versions

New cars on sale in France, from ADEME Car Labelling. NEDC figures until 2015, WLTP figures in the current catalogue.

Years and version	Engine	Power	Fuel	Gearbox	Consumption (combined)	CO₂
2012–2013M37 3.0D AT	–	175 kW (238 PS)	Diesel	7-speed automatic	7.5 L/100 km NEDC	199 g/km
2013M35h	–	225 kW (306 PS)	Hybrid	7-speed automatic	6.9 L/100 km NEDC	159 g/km
2012–2013M37 AT	–	235 kW (320 PS)	Petrol	7-speed automatic	10.2 L/100 km NEDC	235 g/km
2012M35h	–	225 kW (306 PS)	Petrol	7-speed automatic	6.9 L/100 km NEDC	159 g/km

United States 7 versions

Model years sold in the USA, from the EPA and the Department of Energy (fueleconomy.gov). MPG on the EPA test; litres per 100 km = 235.215 ÷ MPG.

Years and version	Engine	Fuel	Gearbox	Drive	Consumption (combined)	CO₂
2012–2013	3.5 L	Hybrid	7-speed automatic	Rear-wheel drive	29 MPG (8.1 L/100 km) EPA	190–194 g/km
2011–2013	3.7 L	Petrol	7-speed automatic	All-wheel drive	20 MPG (11.8 L/100 km) EPA	276–278 g/km
2011–2013	3.7 L	Petrol	7-speed automatic	Rear-wheel drive	21 MPG (11.2 L/100 km) EPA	261–263 g/km
2013	5.6 L	Petrol	7-speed automatic	Rear-wheel drive	19 MPG (12.4 L/100 km) EPA	296 g/km
2013	5.6 L	Petrol	7-speed automatic	All-wheel drive	18 MPG (13.1 L/100 km) EPA	303 g/km
2011–2012SIDI	5.6 L	Petrol	7-speed automatic	All-wheel drive	18 MPG (13.1 L/100 km) EPA	307 g/km
2011–2012SIDI	5.6 L	Petrol	7-speed automatic	Rear-wheel drive	19 MPG (12.4 L/100 km) EPA	291 g/km

Canada 3 versions

Model years sold in Canada, from Natural Resources Canada fuel consumption ratings (5-cycle test).

Years and version	Engine	Fuel	Gearbox	Consumption (combined)	CO₂
2012–2013Mid-size	3.5 L	Petrol	7-speed automatic	8.1 L/100 km 5-cycle	186 g/km
2011–2013Mid-size	3.7 L	Petrol	7-speed automatic	11.0–11.9 L/100 km 5-cycle	253–274 g/km
2011–2013Mid-size	5.6 L	Petrol	7-speed automatic	12.2–12.8 L/100 km 5-cycle	281–294 g/km

Similar models from other brands

Official figures are measured on standard test procedures and differ between markets. Your consumption depends on how, where and in what conditions you drive.