what is dm-tl leak detected on bmw
DM-TL (DIAGNOSIS MODULE - TANK LEAKAGE) INTRODUCTION. A new Fuel System Leak Diagnosis Pump is equipped on the X5. The pump will eventu-. ally replace the current vacuum LDP on all vehicles. The pump is manufactured by Bosch to BMW specifications. â¢ Bosch ECMs identify the electrical function of the pump as DM-TL.