Lift the black plastic cover off the top yolk, fork brace in BMW speak, and check that it's dry inside. If it is replace the cap using a sealant. If it isn't it may be too late and you need a new steering bearing. DAMHIK.
Do the same with the left leading link cover or you may find the alloy pivot bolt cap has corroded in place. Great fun removing that.
Do the same with the left leading link cover or you may find the alloy pivot bolt cap has corroded in place. Great fun removing that.