#Diy but plug how to
#Diy but plug driver
#Diy but plug code

In general, a light tan/gray color tells you that the spark plug is operating at optimum temperature and that the engine is in good condition. By examining the insulator firing nose color, an experienced engine mechanic can determine a great deal about the engine’s overall operating condition.

#Diy but plug how to

This DIY Guide will teach you how to read a spark plug. If you have questions or comments please feel free to contact us using our contact form.īeing able to read a spark plug can be a valuable engine tuning aid. Please feel free to make any comments and corrections regarding this DIY thank you.Last Updated: Tuesday, MaHow to Read a Spark Plug

#Diy but plug code

Lastly reconnect the battery and start the car, assuringly it should start if not go back and start from the begining! My experience of disconnecting the battery led to no need for re-synchronisation of the windows, seats or power sunroof only two things the remote locking and radio code so have it ready. Once all the new plugs are in and all wires are correctly fitted back into the coils and plugs you can put the black cover back on and tighten the allen bolts sequentially and then place the air inlet hosing back into its original place and place the (remove the cover) MAF housing back into the air filter box tighten all bolts and clamps double check replace the MAF sensor connection. When replacing the coil packs the continous clicking of the clip going down the thread will supersede the click of the connection between the wire and the plug so don't worry if you don't hear it. Repeat the same step for all other plugs and when replacing the wires and coils make sure you hear a click and double check by pushing down hard.

#Diy but plug driver

If the coil pack refuses to come out and keeps on going back down then you will have to lift it up slightly and use a flat head screw driver to pry a small clip off the gold collar under the coil pack in one of the corners this is only necessary if the coil pack doesn't want to come off. When removing the coil packs you should disconnect the two wires on either side before pulling it out (in one of holes in the corners of all 3 coil packs you will see a gold collar with a silver bolt in the middle DO NOT try to unscrew it, it is a part of the thread) and place your fingers evenly around the sides and as it comes up you should hear a clicking sound this is a small circlip pin moving up the thread of that silver bolt. I did it one by one becasue this was the first time I was changing the plugs on my first car just gently pull the wire off undo the plug and use a needle nosed plier to carefully remove the spark plug out of the hole put the new one in same way with the pliers and and carefully rotate it into the thread observing its angle down the hole and when all is well tighten it to 28nm(20.5 foot pounds) with the torque wrench,

Disconnect the MAF sensor and remove the MAF housing from the air filter box(2 metal clips and unscrew the circular metal clamp, cover it well, you don't want any foreign particles entering the sensor) and then remove the air inlet hosing thats connected to the throttle valve(3 nuts 10mm, 1 infront 2 behind and a metal circular clamp under the Inlet manifold you need a long screw driver)ģ.Remove the black cover in the middle of the engine(allen keys) and there you'll see 3 HT leads(wires) and 3 coil packs, luckily we don't need the special HT lead (spark plug wires) removal tool you can use your hands to pull the packs and wires off. Disconnect the negative terminal from the battery, this can be done by either removing the rear seat and disconnecting it from the battery itself or by locating and disconnecting the copper cable (nut size 11mm) found in the foot area of the rear right passenger seat behind a credit card sized plastic trim piece just above the floor mat.Ģ. Parts-6 spark plugs, Bosch F8DC4(OE) or any other suitable Bosch spark plugs.ġ. Needle nose plier) and various screw drivers. Tools-Torque wrench(recommended),5/8 or 10mm plug socket, extensions, ratchet, allen key.

This is my first post and probably won't be my last, I decided to add a DIY spark plug change for the 96 and 97 E320 owners, so here is a step by step procedure with pictures hopefully this will be added into the DIY section.