However, the court heard that while she wanted to pay more, she simply didn't have the cash to do so.
Although she had taken out a comprehensive insurance policy, she's been told that she won't be paid out in full because she has been convicted of an offence.
Ehret, through defence counsel David Goldwater, promised to pay a further $13,700 - the cost of the motorcyclist's written off bike - via instalments once she is home.
Judge Geoffrey Ellis admitted he was unsure whether any order he made would have jurisdiction in Germany.
Instead, he accepted her offer to repay the victim in installments and relied on her "honour".
"I have accepted your word, and New Zealand and your victim trusts you to abide by it," Judge Ellis said.
Ehret accepted responsibility at the outset for the crash on State Highway 6, north of Punakaiki, just after 5pm on March 13.
The court was earlier told that Ehret had crossed the white line while driving around a right-hand bend, colliding head-on with the motorcycle.
In sentencing, Judge Ellis told Ehret of the "community concern about New Zealand motorists who suffer injuries at the hands of tourists".
But he acknowledged that Ehret had owned up to her momentary lapse of attention or error of judgement.
The insurer's refusal to pay out could be challenged through the civil courts, the judge said.
He ordered Ehret to pay $2000 in emotional harm reparation before leaving New Zealand and disqualified her from driving for six months.
Judge Ellis also took her word that she would pay the victim $13,700 in instalments on her return home.
"You have made that offer and I have accepted that you have acted honourably and out of human spirit, compassion and remorse for a man who has suffered so badly because of your actions."