Nav system: how good is it?
1. does the MB Nav system announce street names? (or rather does it simply tell the driver to "turn left now..."?
2. does the system tell the driver which side of the highway the next exit is to be taken?
3. is the control of any significant value?
4. is the routing offered accurate and efficient?
5. would I be wiser to consider an after-market unit?
all advice appreciated!
The factory unit for 09 I think is a hard drive, and if so is a little better. Still no touch screen, and updates are about $200 or so.
As for your inquiry,
1) It does say "Prepare to turn right on to I 290 in a half mile." but no announcement on local roads.
2) Yes. "Prepare to exit freeway on the left in a half mile."
3) Not sure what you refer to as "control".
4) Very. I have noticed it even calculates route to avoid rush hour areas at certain times of day.
5) Factory installed is always the neatest and cleanest. An aftermarket mounted with a suction cup and cigarette lighter cord may pose a hazard in a collision.
Overall, I bought mine for the very fuel efficient and remarkable diesel engine, the 4Matic drive train and the versatile cargo bay. I have 2 high school teenagers with Poms gear to chauffeur , a bird dog and winter roads...
Never happens with the Garmin; and they both use NavTeq databases.
I have the older navigation unit (pre 2009) because I have a W203. On a scale of 1 - 10 where a 5 is average I would rate it a 5. It's OK. Nothing great. Having a TomTom though, I definitely prefer the factory nav over it because it's integrated and just easier to jump in and use. Definitly a lot more accurate too because it uses it uses the vehicle speed sensors and has gyros.
My older StreetPilot would not work at all on the dash of my ML, whereas the newer NUVI does, but not as well as it does behind a windshield that is not IR Blocking.



