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I took my Mercedes-Benz 2011 C class through the automatic

Customer Question
carwash now but Car's instrument...
I took my Mercedes-Benz 2011 C class through the automatic carwash now but Car's instrument panels and everything on the car is going crazy and now the car won't start any ideas
Submitted: 1 year ago.Category: Mercedes
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Customer reply replied 1 year ago
its poping codes p0607 Control modular performance and u0155 Lost communication with instrument panel IPC troll modular and p0073 ambient air sensor circuit too high
Customer reply replied 1 year ago
it looked like water had gotten into the fuse box opened up the hood and saw water on top
Answered in 8 minutes by:
8/21/2016
Mercedes Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 1 year ago
Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Mercedes
Satisfied Customers: 4,544
Experience: Owner at Carolina Auto Service & Sales , 20 years experience in Foreign & Domestic vehicles
Verified

Hi, I'm Chad ,Welcome To JustAnswer, I'm reviewing your question and I will be posting a reply ASAP

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Customer reply replied 1 year ago
ok
Mercedes Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 1 year ago

open the box and use shop air to clean the water first, i mean you need to dry it good, even if you have to pull fuse one by one and clean the socket where they go in .?

when it is dry ,then clear your codes and try again or do this master reset , but you will need the radio code after reconnect

where any of these fault codes exist before ?

the U0155 is communication code, but all these are collateral fault codes set because of water,we need to clean and see what comes back if any and then we can address the fault codes left

Master reset Procedure

1- Disconnect Battery Cables ( Negative & Positive Cables )

2- Hold cables Together for 60 secs ,then let go

3- Wait 15 minutes

4- Make sure all doors are closed

5- Reconnect battery Cables

6- Lock & unlock the vehicles using the key from driver door side (if you have a key fob with no blade key, just lock & unlock using the key fob buttons)

7- Enter the vehicle and attempt to start

Please let me know

Thank You

Chad Farhat

ASE Certified Technician

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Mercedes Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 1 year ago

you can buy a can of electrical contact cleaner from your local auto parts store and clean that fuse box with it

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Mercedes Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 1 year ago

Hi, I'm Chad ,Welcome To JustAnswer, I'm reviewing your question and I will be posting a reply ASAP

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Customer reply replied 1 year ago
OK we're doing it now we put the table together sucking out the water I'll let you know if it
Customer reply replied 1 year ago
works
Mercedes Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 1 year ago

hey sorry are you getting my reply, my screen went blank , so i m not sure if you received it

can you let me know

Ok sounds good

Chad

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Mercedes Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 1 year ago

2011 Mercedes Benz C 300 (204.054) V6-3.0L (272.947)

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B14 (Ambient temperature display temperature sensor) : No CAN message. (U0155) Possible cause: - Check the CAN communication with control unit A1 (Instrument cluster). - Chassis CAN bus - Central CAN bus Affected functions: - CAN Communication

2011 Mercedes Benz C 300 (204.054) V6-3.0L (272.947)

Save Article

Component B14 (Ambient temperature display temperature sensor) has a short circuit to positive. (P0073) Possible cause: - B14 (Ambient temperature display temperature sensor) Affected functions: - Power generation

2011 Mercedes Benz C 300 (204.054) V6-3.0L (272.947)

Save Article

Control module has an internal error. (P0607) Test 1: Test control unit. Test 2: Possible cause: - Test control unit. Affected functions: - Engine diagnosis 1. Test control unit. Test control unit. Possible cause and remedy - Erase fault memory and start engine. - Reread fault memory of control unit N3/10 (ME-SFI [ME] control unit).If fault reoccurs, replace component N3/10 (ME-SFI [ME] control unit). Read coding and transfer to the new control unit.End of test 2. No further information available.

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Customer reply replied 1 year ago
ok trying
Mercedes Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 1 year ago

ok

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Customer reply replied 1 year ago
we tryed but did not work any other suggestions
Mercedes Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 1 year ago

is it turning over or none when you turn key ?

scan it now after battery disconnect what fault codes are there now ?

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Mercedes Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 1 year ago

did you time it 15 min on disconnect ?

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Customer reply replied 1 year ago
i did
Customer reply replied 1 year ago
let me check
Mercedes Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 1 year ago

he main one under hood please

Thanks

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Customer reply replied 1 year ago
it still shows a P0607 control modular performance and they ambient air temperature sensor circuit to high P0073
Mercedes Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 1 year ago

the p0607 is the issue, the p0073 , that is an ambient temp sensor sensor want hurt us now , we can address it later after it start .

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Customer reply replied 1 year ago
we found a 15 amp fuse blown in the fuse box in the trunk on the purple slat
Mercedes Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 1 year ago

ok good change it

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Customer reply replied 1 year ago
do you have any ideas on what it does the 15 amp it's in the purple rack in the back of the trunk the third one down
Mercedes Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 1 year ago

sorry are you trying to call me ?

i saw that on screen

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Customer reply replied 1 year ago
fuse number 55 are you can call me(###) ###-####
Mercedes Mechanic: Hipo64, Mercedes Technician replied 1 year ago
Hipo64
Hipo64, Mercedes Technician
Category: Mercedes
Satisfied Customers: 444
Experience: Work and diagnose electronics on daily basis.
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Phone call session started
Mercedes Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 1 year ago

i m trying to call you the system want let me ,trying to fix it .

do you see a rating box grayed out or do you see it open now ?

do you have another fuse to replace with that 15 amp for now ?

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Chad Farhat
Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Mercedes
Satisfied Customers: 4,544
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Experience: Owner at Carolina Auto Service & Sales , 20 years experience in Foreign & Domestic vehicles

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