e220

[oilserver]

hi i have a 1995 e220 124 the problem is the tappets get rattly very quickly i have to change the oil about every 2 hundred miles to stop this i use gtx magnatex i can add stp oil treatment that helps it for a while when i got this car it had a suspect head gasket as in it got hot when sitting in traffic but i found this to be the viscous fan when i turn the ignition on the oil pressure gauge goes straight up can anyone help me i tnink it maybe oil pressure but i can tell with the gauge can anyone tell me where the oil pressure sender switch is cheers hope you can help