Difficulty in starting when engine has been running and at optimum temperature. No problem when starting from cold. Condition has been with car since purchased, but can drain battery after several tries to start which it does the majority of times, but did not on three occasions and required jump start.
The starting problems is due to old injectors. It can help a little if you pour diesel fuel injection system cleaner in the diesel tank, you can buy it at auto stores or even at petrol stations.
Also, when starting it warm, let the motor crank longer and it will start, no need trying many times, just once, but let it crank until it starts.