RoadVitals

2004 BMW Z4 Electrical Problems

Owner-reported complaints naming the electrical system, filed with NHTSA

Data refreshed

Electrical reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
14
Latest Jul 24, 2020
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
3%
of 411 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
1
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
0

What this page shows

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories. Every record below is an owner-reported complaint about the 2004 BMW Z4 submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 14 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming electrical

Shown in the owner’s own words, exactly as filed

ElectricalExterior lightingVisibility
Filed Jul 24, 2020

REOCCURING ISSUE: -DOOR LOCKS NOT FUNCTIONING BY REMOTE OR CENTRAL BUTTON -WIPERS NOT FUNCTIONING -TRUNK RELEASE NOT FUNCTIONING BY REMOTE OR BUTTON -WINDOWS NOT FUNCTIONING -LIGHTING OF INTERIOR NOT WORKING, TO INCLUDE GAUGE CLUSTER -TOP NOT FUNCTIONING ISSUES INTENSIFY ON DAYS OF LOW/HIGHER TEMPERATURES. SEEMS TO RESET BY DISCONNECTING BATTERY AND RECONNECTING AFTER SEVERAL MINUTES. ISSUES POINTS TO GM5 MODULE BEING FAULTY/FAILING THIS IS NOT DISCOVERED UNTIL YOU START THE CAR, SEEMS TO BE A RANDOM OCCURRENCE, BUT HAPPENS AT LEAST ONCE WEEKLY. SOMETIMES IT IS MULTIPLE TIMES A DAY.

NHTSA ID
11341390
Incident
Jul 24, 2020
Mileage
145,000 mi
ElectricalExterior lighting
Filed May 7, 2020

I HAD THIS CAR BUILT AND I AM THE ONLY OWNER AND DRIVER. I HAVE HAD A PERSONAL MECHANIC TAKE METICULOUS CARE OF IT OVER THE YEARS AND THE CAR IS STORED FOR APPROXIMATELY 6 MONTHS/YEAR BECAUSE I DO NOT DRIVE IT IN THE SNOW, AND FRANKLY, HARDLY DRIVE IT EVEN WHEN RAINING. HOWEVER, IT NEVER FAILS THAT EACH YEAR SOME WARNING LIGHT GOES ON FOR NO APPARENT REASON. LAST FALL IT WAS THE ABS LIGHT AND THE BRAKE LIGHT. MY MECHANIC PUT THE CAR ON THE COMPUTER, AND FOUND NO ISSUES. NOW AGAIN, THIS SPRING IT STARTED OUT AS NOT BEING ON, BUT WITHIN 5- 25 MINUTES (VARIES EACH TIME WHEN I START THE CAR UP AND DRIVE) THOSE TWO LIGHTS COME ON. EVERY YEAR THERE SEEMS TO BE NEW LIGHTS THAT COME ON FOR NO APPARENT REASON. I HAVEN'T DRIVEN THE CAR MORE THAN A FEW TIMES BEFORE A LIGHT COMES ON. IT'S COST ME SO MUCH IN DIAGNOSTIC TIME. ALSO ANOTHER PROBLEM IS THAT OFTEN THE RADIO DOESN'T TURN ON. WHEN THIS HAPPENS, THE SCREEN ALSO DOES NOT POP UP. I HAVE TO STOP THE CAR, TURN IT OFF AND THEN RESTART. MOST TIMES THE ELECTRICAL SYSTEM SEEMS TO 'RESTART' ITSELF SO THAT THE RADIO TURNS ON AND THE SCREEN POPS UP. THE ELECTRICAL SYSTEM IN THIS CAR HAS NEVER BEEN RIGHT. *TR

NHTSA ID
11323610
Incident
May 2, 2020
Mileage
64,043 mi
BrakesElectricalSteering
Filed Jan 21, 2020

I PREVIOUSLY FILED A REPORT ABOUT THE ELECTRONIC STEERING WHEEL COLUMN, POOR STEERING, STICKING PRIOR TO HAVING IT FIXED ON THIS DATE. I HAD NOT FOUND THE PAPERWORK FOR IT UNTIL AFTER I SUBMITTED THE REPORT. THE TRACKING # 11300634.

NHTSA ID
11300644
Incident
Apr 22, 2013
Mileage
40,395 mi
ElectricalExterior lightingVisibility
Filed Apr 12, 2019

GM5 MODULE FAIL. WHEN THE GM5 MODULE FAULS WINDSHIELD WIPERS WON'T WORK (THIS COULD BE A BIG PROBLEM IF IT RAINS!), INTERIOR LIGHTS WON'T WORK, WINDOWS WON'T GO UP OR DOWN, NO ALARM FUNCTIONS AND OF COURSE NO AUTOMATIC DOOR LOCK CONTROL (DOORS CAN MANUALLY BE LOCKED AND UNLOCKED AS LONG AS THE DOUBLE LOCK IS OPEN.)

NHTSA ID
11195746
Incident
Apr 12, 2019
Mileage
135,850 mi
Electrical
Filed Nov 3, 2017

26000 MILES ON CAR. ALWAYS IN GARAGE. NEVER DRIVEN IN WINTER AND USE A BATTERY TENDER DURING WINTER.REPLACED 2 BATTERIES THIS SUMMER RECENTLY AFTER NOT DRIVING IT FOR ABOUT 2-3 WEEKS. THIS TELLS ME THAT THERE IS AN ELECTRICAL PROBLEM SOMEWHERE BUT WHERE? IT'S PULLING POWER FROM SOMEWHERE. CAN'T BE TRUSTED

NHTSA ID
11043135
Incident
Jul 17, 2017
Mileage
26,000 mi
ElectricalSteering
Filed Jan 8, 2016

TL* THE CONTACT OWNS A 2004 BMW Z4. WHILE DRIVING 10 MPH, THE EPS LIGHT ILLUMINATED AND THE STEERING WHEEL BECAME DIFFICULT TO TURN. THE VEHICLE WAS NOT TAKEN TO A DEALER OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 88,000. UPDATED 02/26/16*LJ UPDATED 02/29/16.*JB

NHTSA ID
10818912
Incident
Dec 18, 2015
Mileage
88,000 mi
Body & structureElectricalExterior lighting
Filed Jul 26, 2015

I LEFT MY BMW IN THE SUN ALL DAY AND NOW MY LOCKS WONT WORK. MANY RESOURCES LINK THIS PROBLEM TO THE GM5 WHICH CONTROLS THE LIGHTING AND LOCKS. BAD LOCKS CAN BE A SAFETY AND SECURITY ISSUE ON PARKED CARS BUT ALSO FOR MOVING CARS AS CHILDREN MAY OPEN VEHICLE DOORS IN TRAFFIC.

NHTSA ID
10743567
Incident
Jul 25, 2015
Mileage
56,000 mi
ElectricalSteering
Filed Sep 9, 2014

TL* THE CONTACT OWNS A 2004 BMW Z4. WHILE DRIVING APPROXIMATELY 45 MPH, THE STEERING WHEEL SEIZED WITHOUT WARNING. THE FAILURE OCCURRED SEVERAL TIMES. THE DEALER DETERMINED THAT THE VEHICLE EXPERIENCED AN ELECTRICAL FAILURE. THE VEHICLE WAS NOT REPAIRED AND THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 20,000. UPDATED 10/07/14*LJ UPDATED 3/23/2015 *JS

NHTSA ID
10631969
Incident
Oct 12, 2011
Mileage
20,000 mi
Electrical
Filed Jul 10, 2014

JUST PURCHASED THIS CAR FROM A PRIVATE OWNER. DIDN'T NOTICE BUT THE PASSENGER SIDE DOOR WILL NOT UNLOCK BY EITHER USING THE KEY FOB OR THE CENTRAL LOCKING/UNLOCKING SWITCH INSIDE. DID A GOOGLE SEARCH AND FOUND THAT THE GM-5 BOARD NEEDS TO BE REPLACED. I ALSO HEARD THAT THIS GM-5 CAN CAUSE FAILURE ON OTHER FUNCTIONS WITH THE CAR - WIPERS, LIGHTS ETC. THE CAR IS 10 YEARS OLD BUT ONLY HAS 36,000 MILES ON IT. THIS PART SHOULD NOT FAIL SO QUICKLY. *TR

NHTSA ID
10609504
Incident
Jul 8, 2014
Mileage
36,136 mi
ElectricalSteering
Filed Nov 22, 2012

WHILE DRIVING THE STEERING LIGHT COMES ON AND THE STEERING LOCKS IN PLACE. WHEN U TRY TO FORCE IT THE CAR STALLS OUT AND THE STEERING STAYS LOCKED .. EXTREMELY DANGEROUS!!! *TR

NHTSA ID
10485811
Incident
Nov 22, 2012
Mileage
78,000 mi
ElectricalSteering
Filed Jan 13, 2012

THE STEERING BINDS AT ALMOST ANY SPEED. I NOTICED IT WHEN DRIVING STRAIGHT FORWARD. WHEN A CORRECTION IN DIRECTION IS MADE THE WHEEL BINDS UNTIL GREATER PRESSURE IS APPLIED. IT SEEMS THE PROBLEM IS REQUIRING EVEN MORE PRESSURE FOR THE CORRECTION. I CALLED BMWNA AND THEY TOLD ME THEY HAVE HEARD NOTHING ABOUT THIS PROBLEM. I AM IN FEAR FOR MY SAFETY AS WELL AS OTHERS AROUND BMW'S Z-4 2004. *TR

NHTSA ID
10443737
Incident
Jan 6, 2012
Mileage
32,000 mi
Electrical
Filed Oct 3, 2011
Fire reported

WATER GETS INTO THE BATTERY COMPARTMENT THROUGH THE RUBBER GROMMET THAT CARRIES THE MAIN BATTERY CABLE FROM THE TRUNK TO THE FRONT OF THE CAR. THE BATTERY COMPARTMENT IS A WELL THAT ALSO HOUSES THE CAR STEREO AMPLIFIER. AMPLIFIER WAS SITTING IN ABOUT 2 INCHES OF WATER CAUSING THE CIRCUIT BOARD TO SHORT OUT AND CATCH ON FIRE. *TR

NHTSA ID
10428293
Incident
Sep 29, 2011
Electrical
Filed Sep 30, 2011

WATER GETS INTO THE BATTERY COMPARTMENT THROUGH THE RUBBER GROMMET THAT CARRY'S THE MAIN BATTERY CABLE FROM THE TRUNK TO THE FRONT OF THE CAR. CAR STEREO AMPLIFIER DESTROYED. *TR

NHTSA ID
10428005
Incident
Sep 29, 2011
Mileage
86,000 mi
ElectricalSteering
Filed Jul 4, 2010

2004 BMX Z4, STEERING BECAME UNRESPONSIVE WHILE DRIVING AT HIGHWAY SPEEDS. OVER CORRECTION TO REGAIN CONTROL NARROWLY AVOIDING TRAFFIC AND CENTER DIVIDER. AT SLOWER SPEEDS IT FELT LIKE THERE WAS NO STEERING FLUID IN CAR. VERY DIFFICULT TO TURN. BMW DEALER HAD REPLACEMENT STEERING COLUMN IN STOCK IT TOOK 2 DAYS TO REPLACE AT A COST OF $2942.02. *TR

NHTSA ID
10341411
Incident
Apr 19, 2009
Mileage
22,968 mi

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Other components reported on this vehicle

Categories with enough reports to have a page of their own

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .