Park Assist Issues
Thread Starter
Junior Member
Joined: Apr 2014
Posts: 50
Likes: 1
From: Watford UK
w219 CLS 320- Distronic and Keyless
Park Assist Issues
Hi,
I have a 2007 320 LWB.
I have distronic and park assist, however I’m having some issues.
I’ve never had a blue P show up on the dashboard. 3/5 attempts, park assist unavailable shows up on dashboard and the sensors beep, and then show red.
when I use the parallel setting on the comand, it says steering wheel turned too far and the guidance stops.
what is likely the issue? I don’t have actual sensors, I think it’s the radar built in using distronic.
I have a 2007 320 LWB.
I have distronic and park assist, however I’m having some issues.
I’ve never had a blue P show up on the dashboard. 3/5 attempts, park assist unavailable shows up on dashboard and the sensors beep, and then show red.
when I use the parallel setting on the comand, it says steering wheel turned too far and the guidance stops.
what is likely the issue? I don’t have actual sensors, I think it’s the radar built in using distronic.
Super Member
Joined: May 2019
Posts: 671
Likes: 288
From: Omaha, NE
2007 S600
Hi,
I have a 2007 320 LWB.
I have distronic and park assist, however I’m having some issues.
I’ve never had a blue P show up on the dashboard. 3/5 attempts, park assist unavailable shows up on dashboard and the sensors beep, and then show red.
when I use the parallel setting on the comand, it says steering wheel turned too far and the guidance stops.
what is likely the issue? I don’t have actual sensors, I think it’s the radar built in using distronic.
I have a 2007 320 LWB.
I have distronic and park assist, however I’m having some issues.
I’ve never had a blue P show up on the dashboard. 3/5 attempts, park assist unavailable shows up on dashboard and the sensors beep, and then show red.
when I use the parallel setting on the comand, it says steering wheel turned too far and the guidance stops.
what is likely the issue? I don’t have actual sensors, I think it’s the radar built in using distronic.
The descriptions and videos you see that mention the blue "P" symbol are, I believe, for a later version of Park Assist (or Parktronic) and don't apply to your car. What they used in 2007 was very immature technology. The camera is great, but their attempt at "guided" parking - not great.
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Joined: Aug 2014
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Likes: 1,678
S500
parallel parking on mine you always get the turned it too far message.... they seem to think the space is twice as long as any you'll actually find available, so you try to get it in the space and it says well you went a bit wild …. it can be calibrated but that's more during fitment.... they shouldn't got out of sync unless some components is changed or such
MBWorld Fanatic!
Joined: Aug 2014
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S500
the world moved on in technology terms... my sister has "real" park assist on a 2013 Ford Focus and its brilliant.... it turns the wheel for you and it fits in tiny spaces and ends up 4" from the kerb perfectly....
Super Member
Joined: Dec 2015
Posts: 502
Likes: 145
From: Tampa Bay, FL
2014 E350 Wagon, 2009 SL550 no ABC
Thread Starter
Junior Member
Joined: Apr 2014
Posts: 50
Likes: 1
From: Watford UK
w219 CLS 320- Distronic and Keyless
Sorry to dig up an old post. I had a flick through the manual and it shows the P icon information, but I’ve never had it displayed on the panel.
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Joined: Aug 2014
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S500
is it the right manual.... No P on mine what page of the book?
much later I guess 220 PARKTRONIC SYSTEM (PTS)
mine has 229 PARK ASSIST
later cars get option 230 PARKING GUIDANCE
I have an extra with the camera that gives coloured moving lines - you manually swap between reverse (good) and parallel (useless) parking. Not sure if this is 229 or if that that's the parking sensors???
.
much later I guess 220 PARKTRONIC SYSTEM (PTS)
mine has 229 PARK ASSIST
later cars get option 230 PARKING GUIDANCE
I have an extra with the camera that gives coloured moving lines - you manually swap between reverse (good) and parallel (useless) parking. Not sure if this is 229 or if that that's the parking sensors???
.
Last edited by BOTUS; Feb 16, 2021 at 01:28 PM.
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Super Member
Joined: Feb 2009
Posts: 724
Likes: 218
From: Brooklyn, NY
2007 S550 4Matic 2013 S550 Base
is it the right manual.... No P on mine what page of the book?
much later I guess 220 PARKTRONIC SYSTEM (PTS)
mine has 229 PARK ASSIST
later cars get option 230 PARKING GUIDANCE
I have an extra with the camera that gives coloured moving lines - you manually swap between reverse (good) and parallel (useless) parking. Not sure if this is 229 or if that that's the parking sensors???
.
much later I guess 220 PARKTRONIC SYSTEM (PTS)
mine has 229 PARK ASSIST
later cars get option 230 PARKING GUIDANCE
I have an extra with the camera that gives coloured moving lines - you manually swap between reverse (good) and parallel (useless) parking. Not sure if this is 229 or if that that's the parking sensors???
.
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MBWorld Fanatic!
Joined: Aug 2014
Posts: 5,322
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S500
I have 5 radars with disctronic plus, 4 in the bumpers and one in the grille
I don't have blind spot
I have rear camera
with an option extra parking help - which brings active guide lines
I don't have option 230 nor did another with the same features I have
I don't have blind spot
I have rear camera
with an option extra parking help - which brings active guide lines
I don't have option 230 nor did another with the same features I have
Super Member
Joined: Feb 2009
Posts: 724
Likes: 218
From: Brooklyn, NY
2007 S550 4Matic 2013 S550 Base
You need 8 radar units to have option 230, 4 in the front, 4 in the back.
Super Member
Joined: May 2019
Posts: 671
Likes: 288
From: Omaha, NE
2007 S600
Mine is a 2007 S600 with option code 229, "Park Assist" and 233, Distronic Plus. There are four radar sensors behind the front bumper cover, one dead center behind the grille, backup camera. I haven't had the rear bumper cover off, but the EPC shows two "City Assist System" sensors. They are the same part number as the four radar sensors behind the front bumper. The car most definitely does not have blind spot monitoring. The "Park Assist" feature gives you a front parking distance display, and guide lines superimposed on the backup camera to aid in parallel parking or backing into a spot -- supposedly. I've never found that convoluted system the slightest bit useful, it demands that you follow an exact process or it throws up its little German hands and says, "Ich gebe auf! Sie sind auf eigene Faust, Freund."
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S500
its works perfectly to park the correct way, reversing in to a space. But USA frown on that way of driving (in the movies its cos plod like to drive round and check the rear number plates - so illegal to reverse in)
for parallel parking its needs a very long space that doesn't exist where I live and is thus useless
for parallel parking its needs a very long space that doesn't exist where I live and is thus useless
Super Member
Joined: May 2019
Posts: 671
Likes: 288
From: Omaha, NE
2007 S600
Utter nonsense. There is nothing preventing anyone in the US from backing into a parking spot; it's just not commonly done in most parts of the country. It may shock you to learn that not everything you see in movies is completely accurate.
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S500
traffic engineering analyst for the city, filled in the rest of the information. He said, first of all, parking structures and parking lots should all be posted with “no-backing-in” signs. With this ruling, police will be able to check if rear license plates are registered and legal.
Super Member
Joined: May 2019
Posts: 671
Likes: 288
From: Omaha, NE
2007 S600
traffic engineering analyst for the city, filled in the rest of the information. He said, first of all, parking structures and parking lots should all be posted with “no-backing-in” signs. With this ruling, police will be able to check if rear license plates are registered and legal.
- Traffic engineers do not make laws.
- There are over 19,000 towns and cities in the US, with several hundred large enough to justify having traffic engineers. Whatever one might say, the others are (rightly) free to ignore.
- Many states require license plates on the front of vehicles as well as the rear.
- No cop is going to waste time driving through parking lots looking for expired plates. For one thing, parking lots are, by and large, private property, and there is no law against having a car with expired plates parked on private property - or, in most cases, even in a city owned lot. You'd have to be driving or parking it on a public road to be in violation of the law. Plus, they generally have better things to do.
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From: Southern US
2010 E550, 273 Engine: 2012 S550, 278 Engine
- Traffic engineers do not make laws.
- There are over 19,000 towns and cities in the US, with several hundred large enough to justify having traffic engineers. Whatever one might say, the others are (rightly) free to ignore.
- Many states require license plates on the front of vehicles as well as the rear.
- No cop is going to waste time driving through parking lots looking for expired plates. For one thing, parking lots are, by and large, private property, and there is no law against having a car with expired plates parked on private property - or, in most cases, even in a city owned lot. You'd have to be driving or parking it on a public road to be in violation of the law. Plus, they generally have better things to do.
MBWorld Fanatic!
Joined: Aug 2014
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Likes: 1,678
S500
I was in South Africa end of last year they drive on the correct side like Oz, India, Japan, UK etc. - I parked in the day time on the right facing at traffic in a street side parking bay ion a small town (aka on wrong side of the road), plod went mental
In the UK in urban residential 30 mph speed limits no one cares which way the vehicle is facing - but we do have laws on main roads you must park with the traffic flow - the reason is 30 limits - you expect parked cars and most have street lighting so you can see them - on non lit roads or higher speed roads you need the rear reflectors to light up so must face with traffic
Last edited by BOTUS; Mar 31, 2026 at 05:54 AM.
Super Member
Joined: Oct 2023
Posts: 568
Likes: 197
W221 S500
parallel parking on mine you always get the turned it too far message.... they seem to think the space is twice as long as any you'll actually find available, so you try to get it in the space and it says well you went a bit wild …. it can be calibrated but that's more during fitment.... they shouldn't got out of sync unless some components is changed or such
Basically, it's programmed to seek spaces larger than experience tells us the car will fit into and the guidance isn't programmed aggressively enough to cope. There's several legitimate liability reasons for this but it does render the system next to gimmicky unless you live in Wichita😂
Incidentally, because it's Canbus data driven there's a limit to the calibration as defined within the sensors. The software lives in the Comand programming and simply spits out the instructions based on how it's told to interpret the data from the sensors.
Last edited by AL5461; Mar 31, 2026 at 07:01 AM.
Super Member
Joined: Oct 2023
Posts: 568
Likes: 197
W221 S500
Hi,
I have a 2007 320 LWB.
I have distronic and park assist, however I’m having some issues.
I’ve never had a blue P show up on the dashboard. 3/5 attempts, park assist unavailable shows up on dashboard and the sensors beep, and then show red.
when I use the parallel setting on the comand, it says steering wheel turned too far and the guidance stops.
what is likely the issue? I don’t have actual sensors, I think it’s the radar built in using distronic.
I have a 2007 320 LWB.
I have distronic and park assist, however I’m having some issues.
I’ve never had a blue P show up on the dashboard. 3/5 attempts, park assist unavailable shows up on dashboard and the sensors beep, and then show red.
when I use the parallel setting on the comand, it says steering wheel turned too far and the guidance stops.
what is likely the issue? I don’t have actual sensors, I think it’s the radar built in using distronic.
