A few quick questions.... What spark plugs would you recomend for a 1996 "mid-facelift" W202 Esprit ?(i.e. some facelift features, but mostly pre-facelift). Is there a difference in spark plugs between the pre and post facelift? (i.e. should I be looking for specific plugs, or any plugs for a W202?) Are the NGK Iridium "the best" (subjective, I know) there are, or is there something better? Is there a difference between NGK Iridium and NGK Trade? Essentially, I need the plugs to be 110% reliable, not to seize in the desert when I may need to pull them out to dry out the cylinders (we are crossing a few streams futher South), and to be as efficient as possible (it is a rally after all!) Finally, I'm going to change the leads while I'm at it... should I got for OEM, Bosch or something else? I've seen some advertised as "high performace" silicone coated ones, but I'm suspicious... again, reliability is the main concern, with performance coming a close second TIA! M.
What engine are you referring to - is your car a C180? If so, you have an M111. Just fit a set of the standard plugs IMHO, Bosch or one of the other OE brands will be fine. Inspect/check the HT leads before shelling out on new ones, they might well be perfectly ok.
BTW, spark plug fitment details should be on the slam panel under the bonnet or in the owner's manual IIRC.
It is a C180, M111. Not sure if its the 920 or the 921 - will check later... I'm tempted to just fit a pair of NGK trade ones (£8 for a set of 4) and see if the lumpy acceleration smoothens out a bit before shelling out for a set of iridium plugs & new leads... On a side note; if anyone has spark plugs they are selling, for any car really, on the cheap side, I would be interested. (Planning to use them as "trading" material while on the rally... so really, the cheaper the better... looking for about 20 plugs...) M. EDIT: For future reference: NGK Plugs: http://www.ngkpartfinder.co.uk/ Model Detail Engine Type / Additional Info Year Part No Stock No C180 1.8 M111.920 / 202 Series 93 –> 08/95 BCP6E 5860 C180 1.8 M111.921 -->027721 / 202 Series 09/95 –> 08/00 BCP6E 5860 C180 1.8 M111.921 027721--> / 202 Series 09/95 –> 08/00 BKUR5ET 2789 C180 1.8 M111.952 / 203 Series 09/00 –> IFR6D10 5344
Ended up lifting the hood on a coffee break... under the hood, I'm told: BOSCH F8DC4 BERU 14F 8DU4 CHAMPION C11YCC (which also means I have the 921 engine from the facelift model) While I don't know the others, the F8DC4 is a non-resistor spark plug which corresponds to: NGK - BP6EFS Denso - T20EP-U Now, my questions... bosch no longer make non-resistor plugs... in fact, I was under the impression that resistor plugs are the way to go... Any advice? Should I be looking for the NGK non-resistor plugs, or go with the newer replacement resistor plugs? M.
