Archive of BMW Motorrad Club Cape (2006 - 2019)

Don't know if this is helpful to anyone??

On the Greyton ride a week ago we aborted a water crossing half way due to a slight depth problem.  The water level was up to the bottom of the cylinder heads on my 2010 GS.  About 1 - 2 kilometers after we had turned around and taken a detour, I noticed that the oil pressure warning light and general red warning triangle light were on and flashing.  I stopped and checked the oil level which seemed to be a bit low, so we topped it up with about 250ml of oil and checked that the pump seemed to be working fine as you could see the oil flushing through the sight glass.  Engine temp seemed fine and there were no indications of smoke or noise from the engine so I decided to continue the ride back home.  The warning light continued to come ON and OFF intermittently throughout the ride back, with no apparent pattern?? 

A few days later I started the bike and it came ON again after the bike had warmed up.  I then seeked some help from an old friend with some good knowledge and he suggested I unplug the Oil pressure sensor wiring plug, just below the left cylinder and check it for water.  I found it to be completely wet inside the plug and on the sensor side as well.  A few minutes later and some hot air from a hair dryer and all was dry. Lo and behold, problem solved!  Sure it would have cost a few pannies had I gotten the dealer to have to fetch the bike from my house and have it sorted by the workshop!

Don't know if this is just a problem with my bike or if there is a design flaw with the connector, allowing water to seep in, I thought these machines were built to cope with a bit of water??

So if your Oil pressure warning light comes ON after wading through water and all signs look normal otherwise,  it may not be a case of "here comes mega bucks", or having to trailer your bike for the rest of the trip, it could just be a little bit of water in the sensor connector plug.  Just unclip the connector and blow hard or use a bit of toilet paper to dry it out on both ends... Quick 'n Easy fix!