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2005 ml350 Hello do i have to disconnect the battery to change the tps? on 2005 Mercedes-Benz ML350

baught the car with this problem doesnt throttle as it should. by disconnecting the battery will have more problems? or is there a reset procedure? Car showed a po121 code among others it has issues im sure thank you Jim

you may cause more damage than good repairing this yourself. if you have mulitiple codes seek diag and est. a code doesn't mean the part is bad its telling you the circuit has an issue
Thank you i will look into it
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