Motor vehicle door lock

A motor vehicle bonnet lock system comprising:

• a locking mechanism including a rotary latch and a pawl configured to hold and release the rotary latch, wherein the rotary latch comprises first and second arms defining a slot therebetween;
• a bonnet having a lock retainer pin engaging in and disengaging from the slot of the rotary latch;
• a shift lever that is pivotable about a shift lever pivot axis, wherein the shift lever has a stop arm that abuts the lock retainer pin when the lock retainer pin is engaged in the slot of the rotary latch, whereby the shift lever is configured to follow a movement of the lock retainer pin in and out of engagement in the slot of the rotary latch;
• and
• a memory lever, wherein the memory lever is pivotally mounted on a bearing arm of the shift lever and is pivotable about a memory lever pivot axis that is separate from the shift lever pivot axis, wherein the memory lever has a blocking arm that contacts the pawl and a control arm that is engageable against the shift lever, wherein the pivotal mounting of the memory lever on the bearing arm of the shift lever causes the memory lever to follow movement of the shift lever,
• wherein the pawl engages the first arm of the rotary latch in a closed position to retain the lock retainer pin in the slot of the rotary latch,
• wherein the memory lever is pivotable to a pre-ratchet position that corresponds to a pre-ratchet position of the pawl in which the pawl is engaged with the second arm of the rotary latch and the lock retainer pin is engaged in the slot of the rotary latch,
• wherein the memory lever is pivotable to a retention position in which the memory lever holds the pawl in a position in which the pawl is raised away from the rotary latch to release the rotary latch during an unlatching operation of the bonnet, and
• wherein the lock retainer pin remains engaged in the slot of the rotary latch during the unlatching operation of the bonnet until the unlatching operation is completed.