While driving I {noticed|observed|seen} that the fan {in the|within the} cabin of the Audi A4 was becomming tempermental. 50% of the time when {I would|I might|I'd} press on the button to demist the {front|entrance} windshield {it would|it could|it might|it will} fail {to start|to begin|to start out} up. I hate having to wipe the glass {as it|because it} leaves streaks, so {I was|I used to be} {forced|compelled|pressured} to drive with the {windows|home windows} wound {down to|all the way down to|right down to} get {enough|sufficient} air {through|by|by means of|by way of|via} the cabin to clear the glass. Not the safest of {options|choices}. I {got|acquired|bought|obtained|received} the {laptop|laptop computer} out, {connected|linked|related} the VCDS cable and ran the {software|software program}. I {got|acquired|bought|obtained|received} {the following|the next} error {related|associated} to the Heating, ventilation, and air conditioning (HVAC) module {in the|within the} {car|automobile|automotive}. Googling {keywords|key phrases} from {the issue|the difficulty|the problem} {informed|knowledgeable} me that the fan/blower motor {had to be|needed to be} {replaced|changed}. New, this {part|half} is about 120e off ebay. {To do this|To do that}, I {would need|would want|would wish} the {part|half} {number|quantity} to {look for|search for}. So I {would have to|must} take it out to have a {look at|have a look at|take a look at} it. I roughly {followed|adopted} this {guide|information} {here|right here} to {remove|take away} the glove compartment. 9d3zL-7kJBQ Note, some guides will advise you to {remove|take away} the Radio to get at some bolts.
I did this, {but|however} {found|discovered} that {there were|there have been} no bolts that {needed|wanted} {removing|eradicating}. So dont {do that|do this|try this}. 5 screws to {remove|take away} from the glove compartment. Two on {top|high|prime}, about two on {bottom|backside}, and one {under|below|beneath|underneath} the panel to the left of the compartment {inside the|contained in the} door. Once {removed|eliminated}, you {will need to|might want to} disconnect a cable going from the {car|automobile|automotive} to the airbag {enable|allow}/disable {switch|change|swap} {in the|within the} glove compartment. Once {this is|that is} {removed|eliminated}, put the glove compartment {aside|apart}. {You will see|You will note|You will notice} {the power|the ability|the facility} resistor for the fan and the fan itself. One screw holds the fan. Remove this, {and then|after which} with two {hands|arms|fingers|palms}, firmly twist the fan housing to {remove|take away} {the whole|the entire} fan. I cleaned out the cage for any debris. I spun the fan by hand {and found|and located} that it was very stiff, {only|solely} spinning for {less than|lower than} one second {before|earlier than} stopping {again|once more}. I hooked it {up to|as much as} a 12v {power|energy} {supply|provide} {limited|restricted} at 2 amps {and found|and located} that it turned slowly. Looking {at the|on the} {part|half} {number|quantity}, {it is|it's} 8k2 820 021. {This is not|This isn't} meant to be a {user|consumer|person} serviceable {part|half}, {but|however} as I had nothing to {loose|free|unfastened}, I {decided|determined} to open it.
I bent {back|again} {the two|the 2} copper gates holding spring for the carbon brushes in place. This allowed me to {remove|take away} the spring and spray some WD40 into them to {make sure that|be sure that|ensure that|guantee that|make it possible for} they {came|got here} in and out freely. The brushes had about half their life left. Leave the springs out {along with|together with} the brushes pulled out. Next, I {decided|determined} {to have a look|to take a look} {at the|on the} rear bearing and the commutator. {To do this|To do that}, we {have to|must|need to|should} {remove|take away} the {back|again} piece of {metal|metallic|steel} {covering|masking|overlaying|protecting} the rear bearing. {This is|That is} held in place {against|in opposition to|towards} {the main|the primary|the principle} housing by {a few|a couple of|a number of|just a few} crimps {in the|within the} {metal|metallic|steel}. These {can be|could be|may be|might be|will be} teased up by a flat screwdriver. Unfortunately, I {do not have|do not need|don't have|should not have|shouldn't have|would not have|wouldn't have} any {photos|images|photographs|pictures} or video of this. {You will|You'll} now {be able to|be capable of|be capable to|have the ability to} see the commutator. {You can|You may|You possibly can|You'll be able to} see {that there is|that there's} alot of carbon buildup on the copper, {along with|together with} {wear|put on} patterns from the brushes.
{This can be|This may be} cleaned with a {bit of|little bit of} sandpaper. I put the cage {end|finish} into the chuck of an electric drill, held the sandpaper {against|in opposition to|towards} the commutator, and spun it to {smooth|clean|easy} and {clean|clear} it. Then I used a dental {pick|choose|decide} {to clean|to scrub|to wash} between the copper contacts on the commutator for any bits of copper or carbon {that might|that may|which may} {short|brief|quick} it. The rear bushing {got|acquired|bought|obtained|received} spray of wd40 too. I pressed the rear {metal|metallic|steel} housing {back|again} into place {again|once more}. This {will require|would require} {a few|a couple of|a number of|just a few} goes {and some|and a few} {patience|endurance|persistence}. {A few|A couple of|A number of|Just a few} taps of a small hammer bent the crimps {back|again} into place. Screw the rear black plastic housing {back|again} into place {again|once more}. I {tested|examined} it with {the power|the ability|the facility} {supply|provide} {again|once more} and it appeared to spin with {more|extra} {speed|pace|velocity}. Manually spinning the cage resulted in it {continuing|persevering with} to spin for 2-{3|three} seconds {before|earlier than} coming to a {stop|cease}. Not {great|nice}, {but|however} {definitely|positively|undoubtedly} {better|higher} than {before|earlier than}. I {installed|put in} it {back|again} into the {car|automobile|automotive}. VCDS {along with|together with} the cable was used to reset the all errors on the {car|automobile|automotive}. After a month of use, the fan works now as {expected|anticipated}, and there {are no|are not any|aren't any} errors {showing|displaying|exhibiting} up on VCDS.
