As some background, I am not mechanically inclined and rely on my mechanic for advise. He worked for MB for many years and currently runs a private shop fixing Mercedes cars.

That being said, the problem I was experiencing was in the summer. Car was getting very poor gas mileage and there was a gas odour when driving.

My mechanic did a pressure test on the regulator and indicated that although it was getting the right voltage it would not regulate the pressure. When the engine was warm the pressure was too high (above specifications). He indicated that all of the components up to the regulator are working.

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82 - 380 SL