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2015 Bentley

Mulsanne

Auto (S8), 8 cyl, 6.8 L, Turbo

Bentley Mulsanne: best and worst years
2015 Bentley Mulsanne

Photo may show a different model year; you're viewing the 2015.

PhotoMr.choppersCC BY-SA 3.0Wikimedia Commons

Overview

Body
Midsize CarsEPA, from EPA, last updated 6/11/2026
Drivetrain
Rear-Wheel DriveEPA, from EPA, last updated 6/11/2026
Transmission
Automatic (S8)EPA, from EPA, last updated 6/11/2026
Powertrain
GasEPA, from EPA, last updated 6/11/2026
Fuel
PremiumEPA, from EPA, last updated 6/11/2026

Engine & performance

HP
505
Power to weight
0.084 hp/lb
Axle ratio
2.92
Cyl
8EPA, from EPA, last updated 6/11/2026
Aspiration
TurbochargedEPA, from EPA, last updated 6/11/2026
Start-stop system
NoEPA, from EPA, last updated 6/11/2026

Efficiency

MPG Hwy
18 mpgEPA, from EPA, last updated 6/11/2026
MPG City
11 mpgEPA, from EPA, last updated 6/11/2026
MPG Comb
13 mpgEPA, from EPA, last updated 6/11/2026
Fuel $/yr
$5,950EPA, from EPA, last updated 6/11/2026
CO₂
688 g/miEPA, from EPA, last updated 6/11/2026
Eco Score
1/10EPA, from EPA, last updated 6/11/2026
Smog score
5/10
Elec. Range
0 miEPA, from EPA, last updated 6/11/2026
SmartWay certified
No

Dimensions & capacity

Length
220 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Width
76 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Height
60 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Wheelbase
129 inNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Curb Weight
5,977 lbNHTSA vPIC, from NHTSA vPIC, last updated 6/4/2026
Pass. Vol
101 ft³EPA, from EPA, last updated 6/11/2026
Cargo Vol
11 ft³EPA, from EPA, last updated 6/11/2026

Safety NHTSA, model year

Stability control (ESC)
Standard
Forward-collision warning
No
Lane-departure warning
No
Recalls
1
Owner complaints
0

Known issues manufacturer service bulletins, model year

130 service bulletins filed with NHTSA for this model year

  • Apr 20, 2026ELECTRICAL SYSTEM2051562/16

    12 volt - Battery condition checks - Battery replacement requirements. Customer statement / workshop findings: 12 volt battery flat or unserviceable

  • Feb 17, 2026ELECTRICAL SYSTEM2051562/15

    12 volt - Battery condition checks - Battery replacement requirements. Customer statement / workshop findings: 12 volt battery flat or unserviceable

  • Feb 3, 2026ELECTRICAL SYSTEM2051562/14

    12 volt - Battery condition checks - Battery replacement requirements. Condition: 12 volt battery flat or unserviceable

  • Oct 29, 2025ELECTRICAL SYSTEM2061195/4

    Telephone Functionality Complaint - Minimum Standards Required For Analysis Of Concerns.

  • Oct 25, 2025ENGINE2075786/2

    Airbag, fire, accident (safety-related enquiry - reporting forms). There is a reporting obligation in the following cases: • Airbag/belt released/not released • General accident • Fire and scorching damage for all Bentley Vehicle models - every model year.

  • Oct 25, 2025STEERING2056407/7

    Running gear - Noise identification. Condition Customer statement: Noise complaint from the suspension and/or steering Workshop findings: The noise can be reproduced and clearly assigned to the suspension system from either of the axles And/or The noise can be reproduced and clearly assigned to the steering system

  • Oct 25, 2025SERVICE BRAKES2052785/10

    Brake noise identification

  • Oct 25, 2025ENGINE2051187/12

    Poor Engine Running Complaints (Misfires) Petrol Engines Only. Condition: • Poor engine running • Reduced power • Engine warning lamp illuminated • Symptom related DTC’s evident within the applicable engine control unit(s)

  • and 122 more

Source: NHTSA manufacturer communications (technical service bulletins).

Warranty manufacturer terms, by make

Basic
3 yr / unlimited mi
Powertrain
3 yr / unlimited mi
Roadside assistance
3 yr

Information is gathered on a best-effort basis from public sources, may be incomplete or out of date, and is not purchasing or financial advice. Verify with the manufacturer or dealer before buying.