I have a 1997 E200 (R reg) that is automatic. Over the last 3 days, whilst driving I lost power. It felt like putting a manual car into 5th gear when doing only about 20mph. I had to pull over on both ocassions. When restarting the engine, all was back to normal. No warning lights or anything. Any ideas? Please help. I love my car and do about 130 miles return journey every day for work. Thanks.