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Old 07-31-2020, 06:27 PM
Tapatio06 Tapatio06 is offline
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2009 bmw 328i

Hi there I'm looking for help, I have a 2009 328i bmw coupe, I have these faulty codes, can someone tell me what these means and how can I fix them? What like parts are not working properly. So they can be replaced if fixed. Thanks everyone!!!!
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  #2  
Old 07-31-2020, 07:12 PM
ctuna ctuna is offline
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Mein Auto: 325xi wagon
Are you getting an overheat do not drive sign also .
Waterpump being bad is most likely.
Better not to use generic scanners on these .
Also the first one makes me ask do you have a N51 or N52 engine?

Last edited by ctuna; 07-31-2020 at 07:13 PM.
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Old 07-31-2020, 07:31 PM
Tapatio06 Tapatio06 is offline
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Is an N52 engine, I don't get any overheating sign, but when the car gets hot it turns off and it won't turn back on until cools down, if the water pump needs to be replaced does the thermostat too?
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Old 07-31-2020, 08:37 PM
ctuna ctuna is offline
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If its overheating you should be getting a yellow warning going to red.
You will ruin your motor if you ignore overheating error's
Bad waterpump and overheating is usually accompanied by the radiator
fan running constantly.

Did you by any change have a broken accessory belt in the recent past.

broken belt
https://www.bimmerfest.com/forums/sh....php?t=1231881
http://www.e90post.com/forums/showpo...3&postcount=23
https://www.oxwerkzperformance.com/
http://www.e90post.com/forums/showthread.php?t=1477111
https://www.e90post.com/forums/showthread.php?t=1305990


https://www.bimmerfest.com/forums/at...9&d=1539905743

https://www.endtuning.com/ccidcodes.html

WATERPUMP is bad.
no communication with water pump is the common fail when the water pump goes bad.

Last edited by ctuna; 07-31-2020 at 08:54 PM.
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Old 07-31-2020, 08:56 PM
Tapatio06 Tapatio06 is offline
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I recently changed the AC hose pipe that goes from de condenser to compressor, but no accessories broken, the radiator fan wasn't workin because of that, now it's running hard, the car turns off when the weather is really hot, otherwise it stays on, doesn't show any light of overheating, just when the mark is getting close to the half way point of the oil temperature and the weather is hot, the car turns off. So that means the water pump is not working properly? Or the coolant level sensor, which is one of the faults.
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Old 07-31-2020, 09:38 PM
gbalthrop gbalthrop is offline
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Mein Auto: 2007 328xi E91
Quote:
Originally Posted by Tapatio06 View Post
... 2009 328i bmw coupe, I have these faulty codes [2EEA, 2F71, 2E85], can someone tell me what these means and how can I fix them?
Quote:
Originally Posted by Tapatio06 View Post
Is an N52 engine, I don't get any overheating sign, but when the car gets hot it turns off and it won't turn back on until cools down, if the water pump needs to be replaced does the thermostat too?
Questions:
1) What Model is your Autel Scanner?
2) Have you read the Manual to see WHAT Parameters it can read when connected to the DME (Engine Control Module)?
2a) Can it read "Freeze Frame Data" or a "Snapshot" of Parameters at the moment a Fault Code was saved? For instance ECTS (Engine Coolant Temp) at the moment the 2EEA Fault Code was saved would indicate if there was a "Genuine" overheat condition, or simply an issue with the ROTS (Radiator Outlet Temp Sensor) or its wiring/connector. Based upon the fact that your Autel shows Hex-codes, Pump Code 2E85, and whether each fault is currently Present or NOT, I would expect it to be able to read Freeze Frame Data, which the lowly Autel 319 ($35) can do.
3) Can it "Activate" the Coolant Pump?
4) Can it "Activate" the E-box Fan (cooling fan for DME in "E-box" located under hood)?
5) WHERE are you located, and are you SURE your 328i is ULEV (N52) rather than SULEV (N51)? The 2009 328i N52 as sold in US has NO ROTS (Radiator Outlet Temp Sensor) AFAIK. Post the last 7 characters of your VIN so we can check your engine, and/or look at the bottom line on the largest sticker under your hood, for "SULEV" or ULEV.
6) Carefully examine your Lower Radiator Hose for any Temperature Sensor attached to the Hose or its connectors, and let us know/attach photo of what you see.
7) Are you SURE the Coolant Temp Warning Light does NOT come on, either Yellow or Red Radiator Icon on Instrument Cluster?
8) Has any work been done under the hood, or has the "Splash Shield" under the engine been removed in days BEFORE car first shut down? Was any work done in area of JB Fuse Box? Was Blower Motor Harness Recall performed?
9) Is connector properly attached to the ECTS (Engine Coolant Temp Sensor) on the front of the Head next to the Oil Filter Housing? If there is a Sensor on the Lower Radiator Hose, is connector properly attached to that sensor?
10) Do you have a multimeter to do simple Voltage & Continuity (Resistance) tests?

There SHOULD be an "Owner's Manual" for your "Autel Maxi?" (Thumb covers model readout ;-) which you download in pdf format online. THAT should tell you HOW to (a) view Freeze Frame Data (b) Read/ View Parameters (Inputs to DME Module), or HOW to (c) do Activations or produce Outputs to motors such as Coolant Pump or E-box Fan to test their operation.

There's a LOT more to diagnostics than just reading Fault Codes. BTW, your Autel can read Hex-codes (Left Column) and appears to also provide reasonably-correct Fault Code DEFINITIONS in Right-hand column, as well as whether the Fault is currently "Present" or NOT (center column), so don't go rushing out to get a BETTER Scan Tool.

Fault Code Discussion:

2EEA: Here are BMW Fault Code Lookup Definition and Fault Information Link (See Service Notes):
N51 | P00B3 | 2EEA | DME: Temperature sensor cooler outlet, signal | MSV80
http://www.bmwfault.codes/XMLDiagVie...UANwAyADAANAA=

That is the signal from the "Radiator Outlet Temp Sensor" or sensor on/at the Lower radiator hose between radiator Outlet and Thermostat, NOT to be confused with the ECTS (Engine Coolant Temp Sensor) which is between the Head and the Top Radiator Hose or Radiator Inlet. "2EAA" can mean the signal received by the DME from that sensor is either TOO LOW, or TOO HIGH voltage (out of range). If you had a simple P-code reader, OR if your Autel ALSO can show corresponding P-code, P00B3 means circuit LOW, and P00B4 means circuit HIGH. There are simple Resistance/ Ohms measurement tests you can do across the Sensor spades after removing the connector to test the sensor itself, and wiring tests you can do as well, so FIRST answer the questions above & THEN we can do further tests.

2F71: BMW Fault Code Lookup Definition & Fault Information Link (See Service Notes):
2F71 | DME: Electronics-box fan, activation | msv80
http://www.bmwfault.codes/XMLDiagVie...cAMwAyADAANAA=

There is a small cooling fan on the passenger compartment side of the E-box (in which the DME is housed under the hood), which is activated by the DME when the engine is running AND the DME Temperature exceeds a certain value. That 2F71 Code suggests the Fan cannot be activated by the DME (which switches the Fan Ground per Temp requirements), due to faulty fuse (F16 per TIS wiring diagram linked below), wiring fault, or faulty fan motor.
https://www.newtis.info/tisv2/a/en/e...ox-fan/v9sBAMG

2E85: BMW Fault Code Lookup Definition:
2E85 | BSD, message; electric coolant pump: Missing | msv80

Obviously the Coolant Pump is still there and NOT "missing". What IS missing is a speed signal as SHOULD be received by the DME when the DME sends a request for Activation of the pump at a specific speed. Both the Request FROM the DME to the Pump, AND the Pump Speed Signal from the Pump to the DME are sent via the BSD Bus connector which is shown as Violet Wire, Pin #3 of Connector X6035, in this TIS Cooling System wiring diagram:
https://www.newtis.info/tisv2/a/en/e...ooling/vBAgN29

For BOTH the E-box Fan and Coolant Pump, the easiest test is to attempt to activate the motor using your Scan Tool -- If your scan tool has that capability. INPA or ISTA (BMW diagnostic software can quickly do both, so check to see if YOUR Autel Scan Tool can send the correct query to the DME to get it to do that, and WHAT display it can provide to show the result of the attempted activation. Once again, there are OTHER ways of testing the system, so lets try to do it the best way with WHATEVER capability your equipment has.

George

Last edited by gbalthrop; 07-31-2020 at 09:44 PM.
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