we rent the aga valve seal n62 toolkit, this lets you replace the valve seals on a bww n62 engine without removing the cams or changing the timing. If your bmw is smoking after a short period of idling or losing oil but not leaking then this the aga valve replacement tool kit is what you need. The bmw n62 engine is known for having leaking valve seal issues, but the bmw valve replacement tool will let you swap out the valve without removing the cams or taking the heads off saving you thousands in labour and parts. Full Address: Serving lichfield, Staffordshire WS13 7PH Phone Number: 07958 418 730 Business Email: phill_clements@hotmail.com URL: https://www.facebook.com/bmwn62valvesealreplacement/