WiseSage Posted June 13 Share Posted June 13 Hello everyone, I have not been active here for a while. I am gradually making modifications to the W203. Following the replacement of the headlight lenses and a thorough wash, I will provide a picture or video if possible. I have a dilemma and would appreciate any advice. I own Nulon upper engine cleaner, which is sprayed into the manifold via a vacuum line to dislodge carbon deposits from the upper engine, allowing them to depart via the exhaust. I want to ascertain the most optimal and straightforward hoover line to utilise. I have typically located an intake immediately before the throttle body in prior vehicles. I do not intend to spray via the supercharger; nonetheless, would this have any implications or create any problems? I have used this branded cleaner on many vehicles and it has produced satisfactory results. Subsequently, do an oil change, as it is due and recommended. Thank you for any contributions. Quote Link to comment Share on other sites More sharing options...
drummer Posted June 13 Share Posted June 13 If you deem it essential, proceed. What leads you to believe that the upper section need a thorough cleaning? Utilising high-quality fuel should ensure that this supercharged engine remains in satisfactory condition. My W203, with 156,000 kilometres, is in pristine condition. I fuel it with 'super' (the highest octane available at the local supermarket) and do not need any top-end cleaning. Quote Link to comment Share on other sites More sharing options...
WiseSage Posted June 13 Author Share Posted June 13 I would want to do a thorough cleaning, replace the spark plugs, change the oil and filter, conduct regular maintenance, and provide a detailed cleaning. Quote Link to comment Share on other sites More sharing options...
drummer Posted June 13 Share Posted June 13 Regular maintenance is my forte; but, I have never had to clean the 'upper end' of any engine I have had, and it is not a topic often addressed, except from walnut blasting in direct injection engines. Quote Link to comment Share on other sites More sharing options...
WiseSage Posted June 13 Author Share Posted June 13 Indeed, I have perused some information on walnut blasting this evening and have encountered it throughout my travels. I will locate a vacuum source for the throttle body and introduce it accordingly. I have previously worked on many automobiles with my wife (now my ex-wife) while using the accelerator. I suppose I must seek an other somebody to do it. Is it the reason you have children? Quote Link to comment Share on other sites More sharing options...
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