hi i got problem with fuel leak... the fuel injection pump looses fuel, i want to repair it with my friend, he is automechanick. he need to know the manufacturer of the fuel injection pump and if it is possible some kind of service manual. i was looking for it in eper but found only part number which is

subcategory: 10226/01 - FUEL INJECTION SYSTEM (Tab:1/4)
compatibility: M4 ,M5 ,M6 ,M8 ,M9

AC14 - ROTARY INJECTION PUMP UNIT
98464305 - INJECTION PUMP
500323363 - INJECTION PUMP
replacement?

can somebody pls help me with it?

Bosch VE4 pump VE4/10F2100R518
Bosch Number: 0 460 404 077

Bosc number should be clearly stamped on a flat area on the pump.