X35D FAULTS 4D32 AND 4B1C – replaced active urea tank and fuel filter heater at 43,68
 

Sorry the text below is in upper case but that is how the SA typed it.

At 43,683 Kms
CHECK ENGINE LIGHT ON-
CUSTOMER HAS BEEN IN FOR SAME CONCERN TWICE IN LAST 2 WEEKS. PLEASE CHECK AND ADVISE. CAUSE HAS BEEN A SENSOR THAT HAS FAULTED MANY TIMES. CUSTOMER HAS BEEN TRYING TO KEEP BATTERY CHARGED.
CAUSE: BP
CORRECTION - FAULT MEMORY READOUT. FAULTS 4D32: ACTIVE TANK TEMP SENSOR PLAUSIBILITY AND 4B1C: FUEL FILTER HEATING ACTIVATION STORED. TEST PLAN B1365-D7KSH-FUEL FILTER HEATING CARRIED OUT. AS PER TEST PLAN FUEL FILTER HEATER CONNECTOR WAS REMOVED AND CONFIRMED AS OKAY. PROPER POWER, GROUND AND ACTIVATION SIGNAL CONFIRMED AT CONNECTOR. AS PER TEST PLAN FUEL FILTER HEATER IS FAULTING INTERNALLY AND MUST BE REPLACED. FOR FAULT 4D32 TEST PLAN B1365-D7SCRAKTNK-SCR ACTIVE TANK TEMP SENSOR WAS CARRIED OUT. TEST PLAN FOUND THAT TANK TEMP SENSOR WAS READING 75 DEG C. AFTER VEHICLE HAS BEEN ON HOIST FOR 2.5 HOURS WITHOUT ENGINE RUNNING. TECH CONFIRMED TANK HEATERS WERE NOT OPERATIONAL DURING THIS TIME BY CHECKING ECU FUNCTIONS. TECH REMOVED ACTIVE TANK SENSOR CONNECTOR AND FOUND TANK TEMP SENSOR READING 1.48KOHMS COMPARED READING WITH BRAND NEW TANK. NEW TANK READ 11.3KOHMS AT SAME AMBIENT TEMP. TC CASE 47727125 SUBMITTED. AS PER TC NEW ACTIVE TANK ASSMEBLY MUST BE INSTALLED.
COMPLAINT: AS PER LINE 1 DIAGNOSIS PLEASE REPLACE FUEL FILTER HEATER FOR FAILING.
CAUSE: BP
CORRECTION: FUEL FILTER HEATER HAS BEEN REPLACED AS PER DIAG ON LINE 1
COMPLAINT: AS PER LINE 1 DIAGNOSIS PLEASE REPLACE THE UREA ACTIVE TANK
CAUSE: BP
CORRECTION: NEW SCR ACTIVE UREA TANK HAS BEEN INSTALLED. TANK HAS BEEN FILLED WITH UREA. VEHICLE SCAN PERFORMED AND REFILL DETECTION CARRIED OUT. TANK TEMP SENSOR NOW READING PROPER AMBIENT TEMP. FAULTS CLEARED AND ROADTEST CARRIED OUT. FAULT SCAN AFTER ROADTEST FOUND NO FAULTS STORED.

I just had a similar Active Tank Sensor replacement done after I had the Emissions/CEL light on for a bit in my 2010 x5, 35d. Same code as was reported here, 4D32.

They replaced the sensor first part of this week. So far, so good.:)

Is there a question in this thread?

Just wondering. If it is just to capture and document the two fault code, thumbs up.

A

No question. I was just posting that I had the same code and issue, as I was reading some other posts surrounding DEF issues and thought it worthwhile to note for others.

@kkratochvil @ard - no question here either - similar problem and codes:

a followup on 4D32...

My yellow emissions light came on and my 2010 335d (40K miles) and it spent Friday 12/7 - Wednesday 12/12 in the shop - at least they gave me a 2012 535i xdrive as a loaner. Here's the write up:

Tech performed short test with charger. Found 2 faults in DDE, 4B82 EGR and 4D32 Reducing Agent. Followed both test plans, reducing agent faults. Test plan states will occur in winter. Clear fault and drive vehicle to see if fault returns. EGR test plan - function test EGR, EGR sticking. Tech removed EGR and inspected. Found carbon build up in EGR valve. Needs to be replaced. Diag code received. Test drove and active tank sensor fault returned. Original test plan stated to replace active tank if fault returned. Ran test plan again and received diag code...."waited for parts"...When replacing tank, tech found pump submerged in fluid crystals. Tech drained fluid from system, replaced tank and pump. Refilled system, cleared faults, test drove.

Parts replaced: EGR Valve, SCR Container, Supply Module, Diesel Exhaust Fluid, 2 clamps.

So far so good.

Thanks for adding to the knowledge base. It will be important, useful and valuable in the future!

A

both are common your x5 was in good hands.

Sent from my Nexus 7 using Bimmer App

Anyone have an idea of the cost of this had it been outside warranty?