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NHTSA Recall 15V276000: Engine (engine and engine cooling)

Motor Coach Industries reported this safety recall to NHTSA on , covering an estimated 243 vehicles. It affects 2 models including the Mci D4000.

243
vehicles potentially affected
2
models affected
2015
owners notified (June 18)
NHTSA campaign15V276000
Manufacturer campaignSB 423
ComponentENGINE AND ENGINE COOLING › ENGINE
Report receivedMay 12, 2015
Owner notificationJune 18, 2015
Initiated byManufacturer

Defect

Motor Coach Industries (MCI) is recalling certain model year 2011-2012 D4000 motorcoaches manufactured November 12, 2011, to July 11, 2012, and 2014-2015 D4500 motorcoaches manufactured July 4, 2014, to April 30, 2015. Excessive engine crankcase pressures may cause the 90-degree elbow of the vent tube assembly to detach from the crankcase ventilation breather, possibly allowing engine oil to come into contact with hot surfaces.

Safety risk

If the engine oil comes into contact with a hot surface, it can increase the risk of a vehicle fire.

Remedy

MCI will notify owners, and Cummins service centers will administer the repairs which include securing the ends of the 90-degree elbow and reprogramming the electronic control module (ECM) with software that can adjust the engine output under misfire conditions to limit crankcase pressures. These repairs will be performed free of charge. The recall began on June 18, 2015. Owners may contact MCI customer service at 1-800-241-2947 or Cummins Inc. at 1-800-343-7357. MCI's number for this recall is SB 423.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Vehicles covered by recall 15V276000

Make and modelModel years
Mci D40002011, 2012
Mci D45002014, 2015

Being listed here means the campaign covers the model year, not that every car was built with the defect or is still unrepaired. Enter your VIN above to check your specific vehicle. Recall repairs are free at authorised dealers. Source: NHTSA, October 2026.