I would recommend the former Maplewood Peugeut (now Foreign Car services...) on
Morris Avenue in Maplewood, New Jersey.
The no. is: 973-762-2900.
They were one of the most successful Peugeot franchises in the East Coast, and
have maintained a good business repairing foreign cars. They have expertise in
diesels and do warranty work for the regional Mercedes dealers.
They covered everything (and then some...) under Peugeot warranty for me, and
have maintained my '92 405DL Sportwagon since I bought it from them as a
demo/new model. Mario is a first rate mechanic and has proven very ethical to
deal with.
If Peugeot ever returns to the US, I would go back to them in a flash.
Bill Geissler