help please 95 bmw 740il
Hey, so I just made my first BMW purchase last month(95 bmw 740il). The car ran great but had a rattling sounds form underneath the car. I'm assuming the Cats. I recently drove the car and felt like I lost some power when I parked there was a hissing sound coming from behind the engine and the car started overheating. When the car cooled down so did the hissing so I open my coolant resavour and it was bone dry. I added some water since I was there I checked the oil and deemed it needed more oil so I add a quart (castrol edge sae 5w-30). I started the car laterin the evening and let the fluids run through before i left and the hissing and overheating stopped. But the car still felt like it had a loss of power and wouldn't switch from fourth into fifth gear. Now when I start my car it idiles roughly, no power( no pick up past 40mph), loss of power steering and antilock breaks are locked and has a strange smell. Someone please help I know very little about cars but I do know I love this one.