BenzWorld Senior Member
Date registered: Jun 2011
Vehicle: 1999 E320 Sedan
Location: SF Bay Area
Mentioned: 0 Post(s)
Quoted: 45 Post(s)
Well, the instructions for using the spare rim state that it is suitable for driving no more than 12,000 miles, but don't spell out any other limitations (top speed, drive extra carefully etc.). From this one can conclude that for 12,000 miles it should serve you perfectly fine. One can also conclude that after 12,000 miles it will most certainly NOT disintegrate immediately. I assume this limitation simply means that it has never been tested how it would hold up over hundreds of thousands of miles of driving. That means that using it occasionally should be safe.
So it is certainly possible to do this, would it make any sense? Of this I have most serious doubts.
First, where would you buy three more spare wheels? Each car only came with one, so you would most likely need to find three different vendors. Are spare wheels on ebay, for instance, cheaper than standard OE wheels? I am not sure. And what about shipping costs for three separate shipments? Of course, perhaps you could find three wrecked W210s in the junkyard, each with a spare wheel still in place. But in any case, even if you succeeded in buying three spare wheels, each of them would still come with an individual history unknown to you. Maybe one of the three would already have seen 10k or more miles of use, coming from a driver who was thinking like you?
So I would follow a much simpler course of action and try to buy a set of FOUR matching original wheels. Given your original idea, you probably don't care much about looks (by the way, if you put spare wheels on, the lug bolts stick out quite a bit, which does not look quite normal), so those could be in poor cosmetic condition and therefore cheap. Then you could take your good snow tire (provided it is not 10+ years old!) off the spare wheel and buy three matching snow tires. Or you simply buy FOUR new snow tires. This should not make a difference, because with an additional set of used OE wheels, you could now SELL your existing spare wheel (incl. tire) and henceforth use one of the regular wheels as a spare wheel.
I strongly suspect the cost for this would not be much higher, but quite possibly lower, than if you realized your plan. And you would have a viable, long-term solution, another set of wheels you could use forever and on which you can keep your snow tires--which probably makes sense in the place where you live given you are considering using them.
Last edited by Simon_E; 10-20-2015 at 04:37 PM.