Sell Car or Keep It- Audi A4

Last year I bought a spotless 2001 Audi A4 Quattro for a very good price of 15K. Since then I have had two crashes in it, both of which were other drivers fault and were repaired perfectly. However, now there is an electrical fault in the car which could cost 2K to fix, it is on the mysterious computer today. The dilemma is should I put the money into the car and then sell it off because I have fallen out of love with it and I suppose we don't really need that size of car anymore as DH has new company car, or should I hold onto it and drive it into the ground in order to get the money back?