The median 2011 Mercedes-Benz M-Class in the Canadian market sits at $7,100. Most of what's out there lands between $6,714 and $9,700, so that's the band you're working with. Anything under $6,714 either has a story behind it or a lot of kilometres. Above $9,700 you're paying a premium and should know exactly why.
Median mileage on these is 201,600 km. That's the number to anchor against when you're reading an ad. A truck sitting right at that figure and right at $7,100 is a fair, middle-of-the-road deal, nothing more, nothing less.
How kilometres move the price
Mileage costs you about $180 for every 10,000 km on the odometer. Put that in real terms. A 2011 with 160,000 km carries roughly $750 more than one at 201,600 km, all else equal. Go the other way to 250,000 km and you'd expect to knock close to $900 off the median. It's a slow bleed, not a cliff, which means a low-km example is worth chasing but won't blow the range wide open.
CarSignal flagged 2 deals on the 2011 M-Class in the last 90 days. Thin flow, so if a well-priced one shows up, it won't sit around waiting for you to think it over.
Practical read: treat $7,100 as your baseline for an average-mileage truck, then adjust up or down by that $180-per-10,000-km rule. A clean one in the low $6,000s is a genuine win. One asking near $9,700 needs to justify the gap with low kilometres, records, or condition you can see.
Numbers reflect live listings across Canada over the last 90 days, filtered for outliers. Data as of . Prices in CAD.