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  #1  
Old 06-27-2013, 05:41 PM
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Charge for SBC diagnosis?

I have a 2004 E320 Wagon with 40K on it. My wife ( it's her car) thinks the SBC system is cycling more often that it was. The SBC pump is still under extended warranty. I called our local MB dealer and he said to bring it in for diagnosis. my question is: will they charge me for the diagnosis even though the SBC pump is still under warranty? I should have asked when I called but didn't think of it.

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Old 06-27-2013, 05:44 PM
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Where are you located?
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Old 06-27-2013, 06:19 PM
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Old 06-30-2013, 01:06 PM
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Quote:
Originally Posted by desert View Post
I have a 2004 E320 Wagon with 40K on it. My wife ( it's her car) thinks the SBC system is cycling more often that it was. The SBC pump is still under extended warranty. I called our local MB dealer and he said to bring it in for diagnosis. my question is: will they charge me for the diagnosis even though the SBC pump is still under warranty? I should have asked when I called but didn't think of it.
Maybe you should ask the dealer.
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Old 06-30-2013, 01:39 PM
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Question

I'm not understanding what your wife describes as; "cycling more often than it was?" Exactly what does that mean?

According to my paperwork that accompanied my '06 E320 CDI, the SBC brake system on my car is covered by Mercedes-Benz manufacturer warranty for a period of exactly 10 years from date of purchase. Covered under warranty includes any diagnosis I would have to believe too, so your car is coming up on 10 years. I'd get it in ASAP to any authorized MB dealer.
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  #6  
Old 07-01-2013, 12:14 PM
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The SBC hydraulic unit (pump) is covered under the extended warranty. If the car needs something other than the pump to resolve the issue, there will be a charge for diagnosis.
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Old 07-01-2013, 12:41 PM
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Typically you will get a "reduced braking capacity" warning or something like that when there is an issue with the SBC unit.
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Old 07-01-2013, 01:06 PM
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My local dealer will charge for diagnostics if they do not result in a repair covered by warranty. Given that your SBC has not thrown any faults it seems unlikely the dealer will uncover anything when they hookup their diagnostic tools, and you will end up paying 1hr labor for the privilege.

I've had a couple of SBC equipped cars, and can't say I've noticed any pattern or change over time in the running of the pump. When was the last time you had the brake fluid flushed? Perhaps a little air in the system affects when and how much the pump runs?
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Old 07-05-2013, 03:54 AM
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Still don't understand what "cycling" means as the OP wrote. There is NO pulsating/pedal pushback, or "cycling" of any type with these SBC brakes in my '06 CDI. I'm loving the car in the almost month since I bought it. It's brakes bear no semblance to my '99 E300's - especially the wild pedal-pulsating / pushback with the ABS of the '99 under emergency stopping.

Last edited by Skid Row Joe; 07-05-2013 at 01:50 PM.
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  #10  
Old 07-05-2013, 12:03 PM
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Originally Posted by Skid Row Joe View Post
Still don't understand what "cycling" means as the OP wrote.....
Probably notices the pump running more often than usual?
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  #11  
Old 07-05-2013, 12:45 PM
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Originally Posted by ILUVMILS View Post
Probably notices the pump running more often than usual?
Huh? So then how does it manifest this "notices the pump running more often than usual?" Statement(s) still make no sense without an explanation by the OP.
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Old 07-05-2013, 01:44 PM
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Originally Posted by jcyuhn View Post
My local dealer will charge for diagnostics if they do not result in a repair covered by warranty. Given that your SBC has not thrown any faults it seems unlikely the dealer will uncover anything when they hookup their diagnostic tools, and you will end up paying 1hr labor for the privilege.
Typically this. When you take the car in, they'll write up a repair order for whatever their standard diag is, often one hour labor. Then, once they find out what the problem is, they'll call you and let you know. If the problem is something covered under the warranty, you won't have to pay for the diag. If the problem is something not covered under warranty, you would be given a quote for the repair. If you choose to go ahead with the repair, some places will waive the diag, some will add it into the repair, some will charge it as a sepearte line on the RO (especially if the tech who does the diag is not the same as the tech that performs the repair). If you choose not to perform the repair, then you'd be expected to pay the diag, and nothing more.

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  #13  
Old 07-05-2013, 02:27 PM
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Look at the SBC unit on the passenger side, front under the hood Joe and you will see a motor attached to it. That is the pump motor. I suspect this is the pump that she hears running occasionally. Maybe she is hearing it more than she normally does.
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  #14  
Old 07-05-2013, 02:58 PM
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My '06 CDI makes noises from under the hood when you open the passenger door, driver's door - even before inserting the key fob in the dashboard ignition switch - although initially concerned when I first noticed them shortly after buying the car - these are now all understandably perfectly normal sounds to me, that the machine emits. Technology has computers running this and that on them - all normal. Unless you have warning lights or chimes in the instrument cluster going off, or the car operates abnormally under driving, I wouldn't think there's anything wrong with the car on account of having SBC onboard doing it's thing - as designed by Mercedes-Benz.

As far as diagnostics by an authorized Mercedes-Benz dealer's service dept? I'm in both jcyuhn and BAVBMW's line of thinking in that - if there is anything wrong with any part or function of the entire SBC system, I understand that's totally on Mercedes-Benz the manufacturer, remunerating the dealer - both parts and labor. If there is anything whatsoever malfunctioning on your SBC system? You're 100% covered by MB. Drive and enjoy the car!

Last edited by Skid Row Joe; 07-07-2013 at 03:34 PM.
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  #15  
Old 07-07-2013, 02:56 PM
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Quote:
Originally Posted by Skid Row Joe View Post
......if there is anything wrong with any part or function of the entire SBC system, I understand that's totally on Mercedes-Benz the manufacturer, remunerating the dealer - both parts and labor. If there is anything whatsoever malfunctioning on your SBC system? You're 100% covered by MB. Drive and enjoy the car!

The Extended Limited Warranty (ELW) covers the SBC hydraulic unit for ten years from the original date of delivery, and unlimited mileage. Any other SBC repairs are the responsibility of the owner.

FWIW, the hydraulic unit is by far the most common problem with this system.

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