Not too surprised you haven't been exactly bombarded with replies. I reckon there is probably an inverse relationship between the cost of a vehicle and the desire for the owner to get his hands dirty. I've hoisted Red Ken into the air on a few occasions, firstly to paint his brake calipers red (sad, I know) then mainly for tyre rotation. You are right in assuming your trolley jack won't probably get the tyres off the ground unless it is one of the high-lift variants produced with SUVs in mind. IIRC Toolstation and Machine Mart are good sources for inexpensive models. I use a couple of bottle jacks to get a side in the air for tyre rotation. The ride height of the GLC remains the same for all rim/tyre combinations. I have a 5-ton telescopic version that lifts to 500mm and another 10-ton jobbie with just a screwout extension that can lift to 460mm. In addition you will need a couple of jack pads to insert in the lifting point recesses. Something like this:
Jack Pad to fit GLC jacking points
Jack Pad to fit GLC jacking points
