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Discussion Starter #1
Hi,


I am trying to sort out my bas/esp light and have gone through a whole list of things. Now have a replacement second hand BAS unit to fit.

However I cannot locate where it is on the car, it is not where peilcan parts show it on a LHD drive car. I assume it is somewhere else on a RHD car. Can anyone help ?



nic
 

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Super Moderator CA 2012 SLK55 AMG w/P30
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Discussion Starter #3
Thanks for the info, it says in the text that the bas control unit is integrated into the esp. However the only cabling in goes into a completely different looking unit to the one on pelican parts or the ones being sold on ebay uk which i have bought and which they say fits this car. It would be very strange i would have thought if they fitted a different part for rhd to lhd cars.

Here is pic of the bas control unit


 

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Registered 2002 SLK320
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I think it is attached the the ABS hydraulic unit...
Hi,

LOL, that is exactly what I thought, but I wasn't certain :wink:

IIRC there is certainly no separate listing for a BAS Module in SDS

Cheers Dave
 

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Discussion Starter #6
Spoke with a scrap man and he said the bas module is located below the servo (as in LHD) cars. It is definately not there and the cabling does not allow for one. Re the ABS unit this on mine comprises a ESP unit one side, the hydraulic metal section in the middle and the other side has a ABS pump module but no bas unit. Do some cars not have it fitted ?
 

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Premium Member 2001 SLK200K/2001 SLK320
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Hi, as you have a MY 2000 200K, I'm assuming that that is a post-FL (indicators in the wing mirrors) can you confirm that?

Asking because last time I looked Pelican Parts only had a pre-FL and there is a ton of differences between the two ..
 

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Premium Member 2001 SLK200K/2001 SLK320
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@stilettorule This appears to be your answer but only you will know for sure :wink: He describes how he removed the unit on his RHD R170 Japanese unit so...........

https://www.benzworld.org/forums/r170-slk-class/2907290-solved-five-idiot-lights-p0500-p0600.html
Spot on for a post-FL RHD Len :tu:

Spoke with a scrap man and he said the bas module is located below the servo (as in LHD) cars. It is definately not there and the cabling does not allow for one. Re the ABS unit this on mine comprises a ESP unit one side, the hydraulic metal section in the middle and the other side has a ABS pump module but no bas unit. Do some cars not have it fitted ?
Done some research .. IF you have a post-FL, the scrap man is wrong and you have the wrong part.
Post-FLs have more in keeping with the W203 ABS module as opposed to the W202 module that the Pre-FLs have - as hinted at by efair and Dave2302 in previous posts :tu:


Pelican Parts W203 ABS





Note: on Post-FL .pdf, all items highlighted on left of pic are "not valid for this model"

HTH
 

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Discussion Starter #9
Yes thanks for the info it is a faclift car with repeaters in the wing mirrors. May try replacing this unit next then
 

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Premium Member 2001 SLK200K/2001 SLK320
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I am trying to sort out my bas/esp light and have gone through a whole list of things.
Just curious as to what points you towards the BAS unit, it's normally a wheel speed sensor, a broken wss wire, yaw rate sensor or lateral acceleration sensor that sets those lights off. Has it been on a scanner?
 

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Discussion Starter #11
Thanks,


I have had two scanners on it and they would not talk to most of the modules. The bas/esp light is on (but not abs), sometimes you can reset with the steering wheel, but the light will come back on either quite quickly or next time you start it. If off it does not seem to make a difference if you move the car. I have changed the brake light switch and a broken rotation ring and checked the wheel sensors. Looking at posts they seemed to suggest the bas unit was often faulty.
From what your saying it could be yaw rate sensor or lateral acceleration sensor (can these be checked to see if faulty?)


nic
 

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Premium Member 2001 SLK200K/2001 SLK320
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Thanks,


I have had two scanners on it and they would not talk to most of the modules. The bas/esp light is on (but not abs), sometimes you can reset with the steering wheel, but the light will come back on either quite quickly or next time you start it. If off it does not seem to make a difference if you move the car. I have changed the brake light switch and a broken rotation ring and checked the wheel sensors. Looking at posts they seemed to suggest the bas unit was often faulty.
From what your saying it could be yaw rate sensor or lateral acceleration sensor (can these be checked to see if faulty?)


nic
This is the problem with R170s, a lot of scanners don't talk to the modules even tho they are detected and one fault can throw up a mess of faulty components .. you can easily end up playing 'parts darts'

iCarsoft MB II (£140) is adequate in most instances but won't talk to the roof or the aircon, will vaguely point you in the right direction with other modules

Autel md802/805/808 (£200ish) seems to fair a whole lot better all around - there are members on here that quite like their Autels

Merc SDS (£400) is on a whole different level and will tell you everything apparently - resident gurus will confirm that


It may be worth your while to get it scanned by Mercedes before you disappear down a rabbit hole
 

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Registered 2002 SLK320
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This is the problem with R170s, a lot of scanners don't talk to the modules even tho they are detected and one fault can throw up a mess of faulty components .. you can easily end up playing 'parts darts'

iCarsoft MB II (£140) is adequate in most instances but won't talk to the roof or the aircon, will vaguely point you in the right direction with other modules

Autel md802/805/808 (£200ish) seems to fair a whole lot better all around - there are members on here that quite like their Autels

Merc SDS (£400) is on a whole different level and will tell you everything apparently - resident gurus will confirm that


It may be worth your while to get it scanned by Mercedes before you disappear down a rabbit hole
Hi,

Exactly this :tu: .......................

If it costs less than a £400 ish SDS then it is no use with faults such as this and many others.

SDS will do absolutely everything you will ever need, and some.

I am a professional diagnostic / repair workshop, with many different marques Dealer level kit, including 2 SDS machines. I also have 3 good Generic Machines costing 4 to 6 times £400, and even those machines only access a maximum of 80% of all areas / codes on Mercedes, and they don't have the Guided Testing Diagnostic, Developer Mode, (even an MB Dealer doesn't have Developer allowed on their machines), Component Locator, Workshop Manuals, Parts Catalogue etc etc etc.

The first time you think of chucking parts at the problem, bite that bullet, buy SDS and it will pay for itself, and then many times over across the years.

HTH, Cheers Dave
 
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