NHTSA (USA)Critical
At a glance
What can fail
The head air bag inflator may crack at a weld joint, causing gas to leak or the inflator to rupture.
What the fix does
Dealers will replace the head air bags at no cost.
This page covers 3 recalls and EPA fuel economy for the 2015 BMW M4.
19–20 mpg combined
11.8–12.4 L/100km
Compact Cars
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted. Ranges reflect the 2 tested variants for this model year.
The 2015 BMW M4 has 3 recalls, the most serious involving airbag inflators that can rupture and send sharp metal fragments into or out of the cabin, raising the risk of injury to occupants or bystanders.
A driveshaft recall affects certain M4 vehicles where the slip-joint inside the driveshaft may not have been filled with grease during assembly. Without proper lubrication, that joint can fail, cutting power to the rear wheels and leaving the vehicle unable to move, which can create a crash risk if it happens in traffic. There is also a structural concern tied to a previous service action on the rear differential: technicians may have reused the rear sub-frame bolts rather than replacing them with new ones. Reused bolts can work loose over time, and loose sub-frame bolts allow the rear suspension to shift, degrading handling and reducing the driver's control of the vehicle.
At a glance
What can fail
The head air bag inflator may crack at a weld joint, causing gas to leak or the inflator to rupture.
What the fix does
Dealers will replace the head air bags at no cost.
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Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
During prior service, rear sub-frame bolts may have been reused instead of replaced. Reused bolts can loosen over time.
What the fix does
Dealers will replace the rear sub-frame bolts with new bolts at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The driveshaft's slip-joint may lack adequate grease, causing it to fail over time.
What the fix does
Dealers will inspect the driveshaft and replace it if necessary at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.