Rare to see one with Tex
"MBTEX, sometimes called "Taxi Leather" is a vinyl-like Leather-looking synthetic material that has been commonly used in Mercedes-Benz Vehicles for many years now. MBTEX is a a sort of rubbery-feeling material that has a grained look similar to leather but usually more uniform than leather. To the unknowing passenger (and sometimes owners) MBTEX is actually what you are sitting on, and not actually real leather.
In many newer Mercedes-Benz models "MBTEX with Leather inserts" is the standard equipment. Full leather is often an option and not included without an additional cost. Many Mercedes-Benz owners have probably bought their car not realizing that the seats are not full leather.
MBTEX can be very difficult to tell from Leather, as without really close inspection there is not a real "obvious" difference. Most cars that are sold with "MBTEX with Leather inserts" have the center parts of the seats (the parts you sit on and your back rests against) as real leather, and the seat bolsters, sides, headrests, armrests and seat backs as MBTEX. You can often tell the parts of your seats that are real leather as they are usually perforated (the perforation is necessary in order to allow the leather to "breath"). This real leather is often the panels where your bottom sits and where your back rests against the seat. There is also often sections of real leather on the panels. Everything else is usually MBTEX, unless you got the full leather option of course.
Many dealers and people who are familiar with MBTEX will actually recommend it over Leather. It is commonly joked that you can tell if a 10 year old car has leather or MBTEX. The car with MBTEX interior will still look new while the car with leather will look worn. MBTEX is much more durable than leather, easier to clean and requires less attention. MBTEX is also a good idea to have on the seat bolsters as this is an area that is commonly worked well by drivers and passengers entering and exiting the vehicle. Leather bolsters will eventually crease and these creases over time develop into cracks. MBTEX does not have this crease problem.
MBTEX will outlast leather many times over and most individuals can not tell its difference from leather. MBTEX is an excellent choice for anyone who has children, or plans on owning their Mercedes-Benz for a long time."