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Yep, contacted Christian Brothers Automotive and they seem so nice....I am a little sticker shocked but at least the work will be done,
Oil change,spark plugs and engine filter and they will check my brakes=$450.00 and takes 3 hours....they have shuttle service if I need to go anywhere while up there, that is nice and kind of them.
The parts are reasonable, it is the labor that kills you.

I will be going up there next year for an oil change if it is recommended by Smart...can you all tell me if it is as I drive about 1,500 miles a year and it is 99% within the city and no faster then about 35-45 miles per hour.
I want this car to last or at least outlast me as I am soon to be 70.

Thanks for any and all info and ideas. Going to ask them about a back up camera too because it is hard to see.
Buy your tune up/oil parts on RockAuto.com for pennies what your mechanic is going to charge you.
 

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This is similar to mine and the "navigation" button is dark and does nothing.... View attachment 67468
I recently bought a used 453 from a dealer and it originally came from the same Car2Go rental company, after several frustrating weeks of trying to return the car back to factory specs I was successful and to save you the same frustration here it is. Read it all before you do anything. (I've been a auto mechanic for about 40 years now)

The top left vent and box is removed by one screw reached from behind the front dash cover, buy a replacement vent cover online from a Mercedes parts house for like $30 and it pops right into the same spot and returns the car back to normal. You only have to pop out the left side of the dash below the vent to reach the Philipps screw holding in the vent and its attached box.

The one at the base of the windshield (held the rental GPS) is held in by probably two phillips that face the driver, very easy to remove. Also, you buy a replacement cover for the hole once you remove it for about $30 from Mercedes and return the dash back to normal like nothing was ever there.
Removing both items should take you less that 5 mins. You can stuff any wires back into the dash, they went to GPS equipment removed and do absolutely nothing for you or the car now.
Replacing both covers and the car looks exactly as it should as if you bought it new.

For the radio, the rental company does leave in a very decent GPS system and a full set of detailed US maps, but the car's internal GPS antenna is disconnected. Everything you need to get it working properly is still installed in the car.. (If you are unable to set the clock on the radio it is because it only can receive a time change from GPS satellites, this confirms your car's GPS antenna is not connected)

This is how you return everything back to factory GPS functioning radio and enjoy a very useful voice controlled GPS and maps again.

1. If your clock time is wrong and the menu button on the radio for changing the clock time doesn't work it means you have no GPS antenna plugged into the back of your radio.
2. You will need to watch the video before you try to remove the radio so you don't break anything, watch it here:

3. You will need to download a SmartUSA radio software update and have it ready for use on to a USB stick to update the radio, the USB stick should be blank except for the update, all 453 GPS radios required this update at some point after 2019. You can get the official software and update how-to instructions from SmartUSA here: https://www.smartusa.com/resources/downloads/maintenance/SMART-MEDIA-SYSTEM-SOFTWARE-UPDATE.pdf
4. Once you take out the radio you will probably notice there is a spot for a round plug on the back of the radio that has no plug there. If so, you will probably also need to take out the plastic mounting extender that the radio itself was screwed into, this will give you more room behind the dash. You do not have to remove the dash, only the radio and it's mounting box that are on top of the dash.
5. What you are now looking get your hands on is a Green or Blue plug stuffed off to the side somewhere back inside the dash among the other wires, this plug is not plugged into anything, it's just a free hanging wire that should be close to where the other radio wires are located. Your radio GPS plug was unplugged by the rental company to plug their GPS wire into your radio. Find the plug and snake it how you need it to get it to plug back into your radio. Once you plug the GPS cable back into your radio you are done. Put everything back together, your clock should now be working if you have a clear view of the sky for the satellites and are not parked in a garage or similar structure.
6. Now follow the radio upgrade instructions from the SmartUSA download site.
7. Several things you first need to know about the radio upgrade software.
a. It is impossible to mess your radio up, it is only an update to your radio, not the full-blown operating system.
b. All US 453 car radios use only a USB for updating, all non-US or UK and EU 453's update only from a flash card. There is no flash card installed in any US sold 453, only a USB port.
c. Find on the radio within the menus the option to reset your radio back to factory, you may probably need it.
d. Installing the update should not take more than 15 mins, but always let it finish successfully or let it error out with a message so you can try it again.
e. I had to reset my radio back to factory 6 times before I got the update sequence correct, resetting the radio back to factory after getting the failed-update message only removes your update attempt, the radio always works as it did before.
f. If you do everything correctly your clock works and now the GPS panel on the radio should show your current location. The GPS voice guidance and steering wheel voice button will also work.
g. If all else fails just repeat steps C and D until you figure it out.
h. Repeating steps C and D will return any 453 radio back to original settings, the upgrade software reactivates the preinstalled maps.
i. Resetting the 453 radio will display a message there is no maps installed, actually they are installed but the radio can't access them until you install the upgrade software, this error message is normal after all resets.
j. None of these steps interfere with the bluetooth to phone abilities.
k. You will naturally have to reset your radio station presets after any radio reset.
If you do it all correctly you will have a really nice radio and the US maps are great, we use them all the time now with the find-an-address by voice commands while driving.
 

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This is similar to mine and the "navigation" button is dark and does nothing.... View attachment 67468

 

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Discussion Starter · #27 ·
I recently bought a used 453 from a dealer and it originally came from the same Car2Go rental company, after several frustrating weeks of trying to return the car back to factory specs I was successful and to save you the same frustration here it is. Read it all before you do anything. (I've been a auto mechanic for about 40 years now)

The top left vent and box is removed by one screw reached from behind the front dash cover, buy a replacement vent cover online from a Mercedes parts house for like $30 and it pops right into the same spot and returns the car back to normal. You only have to pop out the left side of the dash below the vent to reach the Philipps screw holding in the vent and its attached box.

The one at the base of the windshield (held the rental GPS) is held in by probably two phillips that face the driver, very easy to remove. Also, you buy a replacement cover for the hole once you remove it for about $30 from Mercedes and return the dash back to normal like nothing was ever there.
Removing both items should take you less that 5 mins. You can stuff any wires back into the dash, they went to GPS equipment removed and do absolutely nothing for you or the car now.
Replacing both covers and the car looks exactly as it should as if you bought it new.

For the radio, the rental company does leave in a very decent GPS system and a full set of detailed US maps, but the car's internal GPS antenna is disconnected. Everything you need to get it working properly is still installed in the car.. (If you are unable to set the clock on the radio it is because it only can receive a time change from GPS satellites, this confirms your car's GPS antenna is not connected)

This is how you return everything back to factory GPS functioning radio and enjoy a very useful voice controlled GPS and maps again.

1. If your clock time is wrong and the menu button on the radio for changing the clock time doesn't work it means you have no GPS antenna plugged into the back of your radio.
2. You will need to watch the video before you try to remove the radio so you don't break anything, watch it here:

3. You will need to download a SmartUSA radio software update and have it ready for use on to a USB stick to update the radio, the USB stick should be blank except for the update, all 453 GPS radios required this update at some point after 2019. You can get the official software and update how-to instructions from SmartUSA here: smart Home | smart Canada
4. Once you take out the radio you will probably notice there is a spot for a round plug on the back of the radio that has no plug there. If so, you will probably also need to take out the plastic mounting extender that the radio itself was screwed into, this will give you more room behind the dash. You do not have to remove the dash, only the radio and it's mounting box that are on top of the dash.
5. What you are now looking get your hands on is a Green or Blue plug stuffed off to the side somewhere back inside the dash among the other wires, this plug is not plugged into anything, it's just a free hanging wire that should be close to where the other radio wires are located. Your radio GPS plug was unplugged by the rental company to plug their GPS wire into your radio. Find the plug and snake it how you need it to get it to plug back into your radio. Once you plug the GPS cable back into your radio you are done. Put everything back together, your clock should now be working if you have a clear view of the sky for the satellites and are not parked in a garage or similar structure.
6. Now follow the radio upgrade instructions from the SmartUSA download site.
7. Several things you first need to know about the radio upgrade software.
a. It is impossible to mess your radio up, it is only an update to your radio, not the full-blown operating system.
b. All US 453 car radios use only a USB for updating, all non-US or UK and EU 453's update only from a flash card. There is no flash card installed in any US sold 453, only a USB port.
c. Find on the radio within the menus the option to reset your radio back to factory, you may probably need it.
d. Installing the update should not take more than 15 mins, but always let it finish successfully or let it error out with a message so you can try it again.
e. I had to reset my radio back to factory 6 times before I got the update sequence correct, resetting the radio back to factory after getting the failed-update message only removes your update attempt, the radio always works as it did before.
f. If you do everything correctly your clock works and now the GPS panel on the radio should show your current location. The GPS voice guidance and steering wheel voice button will also work.
g. If all else fails just repeat steps C and D until you figure it out.
h. Repeating steps C and D will return any 453 radio back to original settings, the upgrade software reactivates the preinstalled maps.
i. Resetting the 453 radio will display a message there is no maps installed, actually they are installed but the radio can't access them until you install the upgrade software, this error message is normal after all resets.
j. None of these steps interfere with the bluetooth to phone abilities.
k. You will naturally have to reset your radio station presets after any radio reset.
If you do it all correctly you will have a really nice radio and the US maps are great, we use them all the time now with the find-an-address by voice commands while driving.
I can change the clock...everything works just the navigation button is grey and does not work....we updated the data last year...issue having now, twice the radio stopped working for about a few hours and then it started up the next time I drove it...maybe a fuse????
 

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Discussion Starter · #28 ·
I recently bought a used 453 from a dealer and it originally came from the same Car2Go rental company, after several frustrating weeks of trying to return the car back to factory specs I was successful and to save you the same frustration here it is. Read it all before you do anything. (I've been a auto mechanic for about 40 years now)

The top left vent and box is removed by one screw reached from behind the front dash cover, buy a replacement vent cover online from a Mercedes parts house for like $30 and it pops right into the same spot and returns the car back to normal. You only have to pop out the left side of the dash below the vent to reach the Philipps screw holding in the vent and its attached box.

The one at the base of the windshield (held the rental GPS) is held in by probably two phillips that face the driver, very easy to remove. Also, you buy a replacement cover for the hole once you remove it for about $30 from Mercedes and return the dash back to normal like nothing was ever there.
Removing both items should take you less that 5 mins. You can stuff any wires back into the dash, they went to GPS equipment removed and do absolutely nothing for you or the car now.
Replacing both covers and the car looks exactly as it should as if you bought it new.

For the radio, the rental company does leave in a very decent GPS system and a full set of detailed US maps, but the car's internal GPS antenna is disconnected. Everything you need to get it working properly is still installed in the car.. (If you are unable to set the clock on the radio it is because it only can receive a time change from GPS satellites, this confirms your car's GPS antenna is not connected)

This is how you return everything back to factory GPS functioning radio and enjoy a very useful voice controlled GPS and maps again.

1. If your clock time is wrong and the menu button on the radio for changing the clock time doesn't work it means you have no GPS antenna plugged into the back of your radio.
2. You will need to watch the video before you try to remove the radio so you don't break anything, watch it here:

3. You will need to download a SmartUSA radio software update and have it ready for use on to a USB stick to update the radio, the USB stick should be blank except for the update, all 453 GPS radios required this update at some point after 2019. You can get the official software and update how-to instructions from SmartUSA here: smart Home | smart Canada
4. Once you take out the radio you will probably notice there is a spot for a round plug on the back of the radio that has no plug there. If so, you will probably also need to take out the plastic mounting extender that the radio itself was screwed into, this will give you more room behind the dash. You do not have to remove the dash, only the radio and it's mounting box that are on top of the dash.
5. What you are now looking get your hands on is a Green or Blue plug stuffed off to the side somewhere back inside the dash among the other wires, this plug is not plugged into anything, it's just a free hanging wire that should be close to where the other radio wires are located. Your radio GPS plug was unplugged by the rental company to plug their GPS wire into your radio. Find the plug and snake it how you need it to get it to plug back into your radio. Once you plug the GPS cable back into your radio you are done. Put everything back together, your clock should now be working if you have a clear view of the sky for the satellites and are not parked in a garage or similar structure.
6. Now follow the radio upgrade instructions from the SmartUSA download site.
7. Several things you first need to know about the radio upgrade software.
a. It is impossible to mess your radio up, it is only an update to your radio, not the full-blown operating system.
b. All US 453 car radios use only a USB for updating, all non-US or UK and EU 453's update only from a flash card. There is no flash card installed in any US sold 453, only a USB port.
c. Find on the radio within the menus the option to reset your radio back to factory, you may probably need it.
d. Installing the update should not take more than 15 mins, but always let it finish successfully or let it error out with a message so you can try it again.
e. I had to reset my radio back to factory 6 times before I got the update sequence correct, resetting the radio back to factory after getting the failed-update message only removes your update attempt, the radio always works as it did before.
f. If you do everything correctly your clock works and now the GPS panel on the radio should show your current location. The GPS voice guidance and steering wheel voice button will also work.
g. If all else fails just repeat steps C and D until you figure it out.
h. Repeating steps C and D will return any 453 radio back to original settings, the upgrade software reactivates the preinstalled maps.
i. Resetting the 453 radio will display a message there is no maps installed, actually they are installed but the radio can't access them until you install the upgrade software, this error message is normal after all resets.
j. None of these steps interfere with the bluetooth to phone abilities.
k. You will naturally have to reset your radio station presets after any radio reset.
If you do it all correctly you will have a really nice radio and the US maps are great, we use them all the time now with the find-an-address by voice commands while driving.
Did the radio software update and it said it was successful and the words TomTom showed up, but still no maps found...did I do something wrong?
Did not remove radio as I do not want to destroy my system as I am usually all thumbs...what do I do now?
 

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Discussion Starter · #30 ·
How did you make out with the oil change?
I did not go on the 19th as the plugs did not arrive, but I went on the 2nd of this month and they even charged me way less, they did tell me I needed two front tires as mine were dry rotten. I did not know that so I purchased two tires here in town where I live from a wholesale tire outlet. Still not cheap but good for 65,000 miles...they will out live me LOL I only drive about 2,000 miles a year.
Answer me this: I filled my tank before I left for that long drive to Christian Brothers (51 miles one way) for total of 102miles plus I drove another 30 miles around town( 132Miles) and used 2 bars...which is two gallons right? If so, how did I get 66miles to a gallon?
I mean it runs way better now with new plugs and filters and of course an oil change but this is crazy right????
 

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Each bar is not equal to a gallon. You will have to do the math on the next fill to know your true mileage.
 

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I did not go on the 19th as the plugs did not arrive, but I went on the 2nd of this month and they even charged me way less, they did tell me I needed two front tires as mine were dry rotten. I did not know that so I purchased two tires here in town where I live from a wholesale tire outlet. Still not cheap but good for 65,000 miles...they will out live me LOL I only drive about 2,000 miles a year.
Answer me this: I filled my tank before I left for that long drive to Christian Brothers (51 miles one way) for total of 102miles plus I drove another 30 miles around town( 132Miles) and used 2 bars...which is two gallons right? If so, how did I get 66miles to a gallon?
I mean it runs way better now with new plugs and filters and of course an oil change but this is crazy right????
With new plugs, and what every else they did. Your should achieve better fuel economy. You really need to test it tank to tank fill ups. I doubt, you got 66 mpgs. Don’t gauge you fuel economy, by those fuel bars.

How did Christian Brothers automotive treat you? Curious from state to state? We love their service here.
 

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The first bar last forever. As you have filled a lot of gas tanks over the years thank its self fills up then the gas gas up the fill tube and clicks off the gas pump. So I would think you burned closer to 3 gallons which would put you just about right at 43 to 45 MPG. Did have a good time driving it?
 

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Discussion Starter · #34 ·
With new plugs, and what every else they did. Your should achieve better fuel economy. You really need to test it tank to tank fill ups. I doubt, you got 66 mpgs. Don’t gauge you fuel economy, by those fuel bars.

How did Christian Brothers automotive treat you? Curious from state to state? We love their service here.
Christian Brothers were the kindest and most caring and did not talk down to me because I was a woman.
And the owner used to have a Smart so that made it even nicer.
 

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Discussion Starter · #35 ·
The first bar last forever. As you have filled a lot of gas tanks over the years thank its self fills up then the gas gas up the fill tube and clicks off the gas pump. So I would think you burned closer to 3 gallons which would put you just about right at 43 to 45 MPG. Did have a good time driving it?
I love driving the Smart no matter where I go, I even look for laces to go just so I can drive.I looked at the dash for miles per hour etc...and it said 49.5 and that was on the way up and the same on the way back.....I understand about tank to tank fill up and will do that, but the last time a while back I was getting about 185-to almost 200miles and had to fill up again as I only had one bar left....hoping I will get way better now. As soon as I hit 50 miles traveled today another bar disappeared so am down 3 bars....have 5 more to go....the miles an hr on meter now says 39.5 and that is just in town.
Just trying to figure this all out.
 

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After filling up the tank. The 451 the fuel gauge bar first Notch, moves around 95-100 miles. Since you have a 453, not sure what it does. The gauges bars, on the 451/453 are not the way to measure fuel economy. Doesn’t the 453 have a average fuel trip, feature? Just tank to tank.
 

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Discussion Starter · #37 ·
After filling up the tank. The 451 the fuel gauge bar first Notch, moves around 95-100 miles. Since you have a 453, not sure what it does. The gauges bars, on the 451/453 are not the way to measure fuel economy. Doesn’t the 453 have a average fuel trip, feature? Just tank to tank.
Yes that is what I guess I was trying to explain...trip meter and also miles traveled per amount of time driving at least that is what I understand it to mean....it has it from reset and next screen is from time you have driven and also in miles. Wish I had a screen shot LOL
 

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Discussion Starter · #39 ·
Yes I have some of that on my car but not eco....and a few other things as that looks like UK version....I never let the bars get below 7 so I will check again how much I have to fill and see what my mileage is or should be....I hope to get better then the 200 or so miles to a tank that I was getting before the tune up etc.....other people said they were getting 300-350 miles to a tank...hope that is true.
 

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I wouldn’t expect 300 or more miles per tank in the 453. Plus or minus 260 is more the normal range with maybe 1 bar remaining at fill up. My year average is 41-42 mpg and that’s with a performance boost module. Much depends on load, speed and terrain traveled. Summer average is lower because of AC use and winter average is higher. Traveling at a steady 40-50 mph, level ground and light pressure on the pedal will produce mpg in the 50s in a 453. I once saw 62 mpg for a short distance of several miles.
 
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