after reading thru all the good reviews about the vanos seals change where there is increased low end torque and the smoothening out of the idle and also smoother gear changes,I am all psyched up to have a go at this....DIY.Actually now that I have read thru this,I realised that the power band on my m52b28 only comes in at 3500rpm.below that the low end torque is hopeless....and i drive a 2.8!other than useless lo end torque,I don't have any other issues with the engine. after reading thru the process,the single vanos seal change looks more involved compared to the double vanos,but I am confident this can be done diy. as such to all the m52 guys (single vanos) who is keen to have a go at this..... DIY style....we need to purchase the tool from el paso for usd 110.00 per kit.i propose we share buying this kit and share the usage.....kira time sharing la ni......anyone.........? errr.....osso the vanos seals kena group buy la......save on the freight charges maaa...