hello
i am the proud owner of an old lady with low mileage , 40.000 miles, 2002 BMW 4.3L V8 gasoline

i am just back from the yearly technical check and they told me my engine ignition is not well, as they could feel some vibrations from the engine cover , adding that a V8 engine runs so smooth that you should not feel any vibration at all.

i am not a mechanics, but i checked with the IITool and no failure is found about ignition or engine .
idle engine being perfectly steady at 702 rev/mn.

my question is : should I rely on the IITool and consider everything is ok , or should I have the engine further
checked at a dealer ?

thank you for your advice .

Hi, first it's a 4.4 not a 4.3...

Low miles can give more problems than high miles in a lot of ways... I would imagine it will be your injectors that are gummed up, change the fuel filter, put a decent quality injector cleaner in half a tank of fresh petrol and drive it for more than 50 miles at a brisk pace including some full throttle acceleration runs, if that doesn't work then try something like a Terraclean..

Also note that petrol starts to "go off" after about three months, this can cause lumpy running...

There is nothing that can be checked by a dealer that your IIDtool isn't telling you, if you had a misfire or similar you would have a fault code and the MIL light would be on...  Pete

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2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
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hi Haylands,
thank you for your advice,
i will have a go with winns injector cleaner, if it is not enough , i will try Terraclean
thank you