jadnashuanh
Posts: 4470
Joined: Thu May 22, 2014 2:07 pm
Location: Nashua, NH USA

Re: heavy fan noise while charging

Wed Feb 01, 2017 12:01 pm

The way I look at it (and I hope it doesn't come back to bite me!) is that with most of my previous cars, if they had problems, it was often in the first 10K miles or so. If it was my only car, that would generally have occurred within the first year, so both for mileage and time, it would have been in warranty. That's no longer the case since I've retired...I just don't drive as much. Most of my local driving is entirely done in the i3, but in approaching 3-years, the car still hasn't broken 8K miles, but I should break that 10K mark before the warranty expires. I tend to keep my cars until they either start having more problems than I care to deal with, or they bore me, or there's something new that really tweaks my interest. I'm not sure any of those will happen with the i3.

FWIW, compared to many cars, the i3 is fairly simple these days. I'm planning on keeping mine for quite awhile yet, and I do not believe the major costs will make me regret it. When the current factory warranty expires, I'll have to consider what BMW wants to extend it...I may or may not want to bite that bullet for the insurance. Given the car was an entirely new design, I would hope that a new one will have worked out some of the bugs. I'm expecting probably for the 2018MY, we'll see some other changes, with a larger battery which will require some changes, and lessons learned along the way. But, by then, there may be some other contenders.
Jim DeBruycker
2011 535i x-drive GT, 2014 i3 BEV

janner
Posts: 235
Joined: Sun Jan 25, 2015 5:24 am
Location: Bath, UK

Re: heavy fan noise while charging

Wed Feb 01, 2017 12:37 pm

The same compressor runs the cabin air conditioning, the battery cooling (not the heating) and, if fitted, the heat pump. Max compressor pressure should be 30 bar.
2015 i3 ReX Solar Orange, Loft interior world. BMW professional, 19" turbine-spoke 429 wheels, DC rapid charging, driving assistant plus.

bwilson4web
Posts: 696
Joined: Fri Apr 29, 2016 11:59 pm
Location: Huntsville, AL

Re: heavy fan noise while charging

Wed Feb 01, 2017 7:36 pm

Hi Jim,

Until Dec 9, 2016 when the motor mount bolt broke, I was with you:
jadnashuanh wrote:. . . I'm planning on keeping mine for quite awhile yet, and I do not believe the major costs will make me regret it. When the current factory warranty expires, I'll have to consider what BMW wants to extend it...I may or may not want to bite that bullet for the insurance. Given the car was an entirely new design, I would hope that a new one will have worked out some of the bugs. I'm expecting probably for the 2018MY, we'll see some other changes, with a larger battery which will require some changes, and lessons learned along the way. But, by then, there may be some other contenders.
What I realized is my used BMW i3-REx had 6,440 miles and year of service. I cracked the windshield when the wiper came off the arm. The backup camera, OK things happen. But the broken motor mount bolt was a wake-up.

The repair part was obviously a stronger part both the bolt, ~1/2" to ~3/4", and the fixture on the transmission/ motor/ REx assembly. Now it could have been that the broken bolt was not torqued enough allowing the rocking motion that led to the fracture. I also remain concerned about a single source for the tires. The effect was I realized my backup car, a 2010 Prius, was no longer acceptable as a backup car for the BMW i3-REx and what the dealer loaned was totally unacceptable.

My hard requirement is: (1) dynamic cruise control, and (2) accident avoidance. By lucky coincidence, I fell into a good deal and replaced the 2010 Prius with car that could have been bought instead of the BWW i3-REx. So I have a lot of sympathy.

GOOD LUCK!
Bob Wilson
20k/27k mi 2014 BMW i3-REx
10k/10k mi 2017 Prius Prime

vmSeattle
Posts: 38
Joined: Tue Feb 04, 2014 3:47 pm
Location: Seattle, WA

Re: heavy fan noise while charging

Tue Feb 07, 2017 6:50 pm

2014 BEV i3. Had an issue where the fan would come on all the time. This is a fan in the front of the car and was extremely noisy when driving. Would not ramp up immediately, but maybe after 10-15min of driving and spun down when speed < 30mph. Turned out the EKK was bad. That's the electronic compressor. It wasn't running properly, so the fan was trying to compensate by running 100%. The dealer found errors pointing to a coolant valve, but that wasn't it. It was the EKK. Interestingly, while the valve was not in stock at the dealer, the EKK was. Dealer remarked that for them to have it in stock, it must be a common failure.

steffi3
Posts: 6
Joined: Tue Apr 25, 2017 6:08 am

Re: heavy fan noise while charging

Mon Feb 05, 2018 6:26 am

We had the same problem as described in the first post and 7th by Jeremy. It’s a 2014-08 REX. The dealer told me first that this is a regenerating cycle of the electric motor and should let it end. It would stop automatically after a while. It did not! Checked several forums like this also in German language and the reason was several times a defective condenser of the A/C with loss of refrigerant. My workshop found the same and told me that there are more than one very small leakages. They said this comes certainly from stone-chipping hitting the condenser. Repair cost estimated 1’600 CHF which is roughly the same in USD. Fortunately there are existing these forums to get information. I could convince the workshop that it comes not from stones and to ask BMW for goodwill because the warranty expired 5 month ago. Finally they took over the part (condenser) 700-800 CHF and we have to pay the labor costs. Estimating the factor for parts to 10 it costs BMW not more than 100 CHF (=$).

tobiassej
Posts: 36
Joined: Sun Aug 09, 2015 6:14 am
Location: Denmark

Re: heavy fan noise while charging

Wed Feb 07, 2018 12:21 pm

I don't have good experiences with BMW replacing things out of warranty.

I have two i3 and the cuffs are warn out on all front shock absorbers on both cars. Never tried than on other cars after 65-75.000 km

BMW said that the shock absorbers will wear down earlier that expected but they would not replace two months after warranty ran out.

Instead they suggested that I pay 200 $/car to have them replace the cuffs.

Samlic
Posts: 6
Joined: Fri Jun 17, 2016 9:02 am
Location: UK SW

Re: heavy fan noise while charging

Wed Feb 20, 2019 2:56 am

Just to say my i3 just started to have the exact symptoms: the radiator fan maxed out when charging or driving. And I remebered 2 weeks before the start of this symptoms, there was some "water pipe" sound coming out through the cabin air vent. Not sure if these 2 symptoms are related tho.

Star63
Posts: 13
Joined: Mon Sep 10, 2018 12:05 pm
Location: Finland

Re: heavy fan noise while charging

Thu Feb 21, 2019 12:15 pm

Me too.

The leaking condenser was diagnosed last summer. My car only had 14.334 km at the time but it was out of warranty (late 2014 model). There was no indication of any external damage (stone chip etc.) on the condenser but BMW AG in München did not accept my goodwill request.

I exchanged quite a few emails with the Corporate Quality, Warranty and Goodwill Manager without success. I asked for an official BMW AG statement if the leaking condenser in a very low mileage BMW is a “built in feature” or a “manufacturing fault”. She finally stated that due to the age of this car the leakage on a 14.334 km driven BMW is considered normal. A premium car? :roll:
2014 BMW i3 REX

Samlic
Posts: 6
Joined: Fri Jun 17, 2016 9:02 am
Location: UK SW

Re: heavy fan noise while charging

Fri Mar 15, 2019 5:15 am

An update: I had my i3 fixed, there's a leak from the condenser. Charged £540 (incl. VAT) with parts, gas recharge and labour.
Spoke to the repair technician, he explained there is a stone chip at the bottom right corner, and also collecting leafs there. He went on saying that it's rather a common issue on the BMWs.

My opinion: all cars have condenser in front of the radiator and the bumper opening is all roughly same size and same clearance from the ground. The i3 also has a shutter grill that is normally closed during high speed driving, the chances that you get a stone chip damage on your condenser is very very low. however, Leafs accumulating at the corner could stop part of your condenser from cooling effectively, eventually the expanding hot part dislocate from other cold parts, causing the leak. I believe it's a design issue, since the i3 runs the AC circuit pretty much all the time (even at ambient 6 degreeC): charging, idling, running, a conventional condenser layout shouldn't be used.They just don't admit it.

From now on I wash the condensor weekly.

one thing do makes me wonder, the "normal" goat noise (i.e. during pre-condition) from the condenser is also gone after the fix, does that mean it's been leaking slighly since day one?

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