Oil measurement apparatus

An oil measurement apparatus for an oil-lubricated internal combustion engine, comprising:

• an oil dipstick;
• and
• a guide for guiding the oil dipstick into an oil pan of the internal combustion engine, wherein a measurement point of a measurement region of the oil dipstick is configured to record a fill level of engine oil in the oil pan,
• wherein the oil dipstick, in a first end region, has a handling element for inserting and removing the oil dipstick into and from the guide, and in a second end region the oil dipstick has the measurement region configured to record the fill level,
• wherein, in a first state of the oil measurement apparatus, the measurement region extends out of the guide and into the oil pan such that the measurement point of the measurement region can record said fill level and, in a second state of the oil measurement apparatus, the measurement region is fully retracted into the guide,
• wherein the oil dipstick has a dipstick stop element between the handling element and the measurement region,
• wherein the oil dipstick has a dipstick cover which is displaceable between the measurement region and the dipstick stop element,
• wherein the dipstick cover is configured for at least temporarily covering the measurement point without contacting the measurement point,
• wherein, in the second state of the oil measurement apparatus, the measurement point is covered at least in certain portions by the dipstick cover without being contacted by the dipstick cover,
• wherein the guide has a first end region, in which the oil dipstick is introduced as intended, and a second end region, which is situated opposite the first end region,
• wherein a guide stop element is arranged in the second end region of the guide, and
• wherein the guide stop element forms a radial constriction at least with respect to an immediately adjacent region of the guide.