I jsut brought a Airbag Light reset tool from Ebay...
I have a 52 plate MCS and about a week ago the Airbag light came on when I moved the passenger seat forward.
Having checked and rechecked the connections under both seats I decided to buy a Warning Light Reset tool on Ebay for £50. It arrived today and I plugged it in, however rather dissapointingly it has not worked.
How can I tell if this is a problem with the car or a problem with the tool? There appears to be nothing wrong with the under seat connectors yet the light will not extinguish.
I read on here that people have spent £££ with BMW trying to fix the same problem, hence I brought the tool myself.
I don't think disconnecting the battery makes any difference on the MINI once a SRS fault has been logged in memory.
What airbag reset tool have you bought?
Assumming the tool is suitable for the MINI most will give you a fault code reading which can be decoded to give the faulty component. eg. Left seat airbag firing system, right seatbelt pre-tensioner, etc.
If the fault was only temporary or intermittent, like a bad connection the reset tool should extingush the light, at least for a while. The B200 tool often needs 2 or 3 attempts I have found, and you need to switch on the ignition/start the engine for the SRS system to self check and put out the light afterwards. If this does not work then the fault is likely to be a permanent component failure which may involve replacing something like a seat belt pre-tensioner (cheaper secondhand) or re-soldering some seat wiring connections.
I use a tool from the same manufacturer and have had no problems. There is sometimes a knack to reading the code in the first place...just follow the instructions given with the unit.
Are you able to read the fault code? If so it should tell you what component is or was at fault. That should help you narrow down the cause. There should be a table of fault codes against description of fault in the instruction book.
Thanks for your help - Unfortunately, no the reader that I brought does not display the fault code it simple says 'Reset OK!'.
It does not include a code reading function - Perhaps I should have opted for a better reader.
Im fairly confident that the connector under the seat is at fault, since the light came on when I moved the seat forward - There are two connectors, one yellow and one blue, both with two wires - shall I solder all 4?
No harm in soldering all 4, or just do say the yellow first and then try your reset tool, then blue if no result. If I remember right the yellow is for seat airbag and blue is for the seat belt pre-tensioner unit/buckle. Do not switch on the ignition while wires are disconnected as this will register more fault codes, ideally disconnect battery to prevent any static charge firing an airbag while you are working and it is recommended you wait 15-20 minutes after switching off/disconnecting battery before working on SRS system as some electric charge can remain in units for this time in theory.
Today I replaced all 4 wiring clips (8 wires) with new spade connectors and re-tried thereset tool to no avail. One thing I note is that the airbag light itself flickers very faintly about once a second (unlike the handbrake warning light which stays on solidly), you have to be very close to notice this.
Just makes no difference - I beginning to think the tool may be at fault...
By the way I ran the reset about 30 times just to make sure and it definately doesnt work! The wires under the seats are not too blame.
Is there anything else I cna do without forking out for proper diagnostic? The light being on is really annoying!
Assuming the reset tool is working.......
The other fairly common fault is the seat belt buckle/pre-tensioner, you can pick these up fairly cheaply secondhand and to replace you need to remove the seat (4 Torx bolts). However, I think you have no choice but to have it checked with diagnostics now to narrow down which component of the SRS system is at fault, but I would use a local independant auto-electrician for this as he will be much cheaper than a BMW dealer. Let us know how you get on.
i had similiar issues with my MCS. i undid the connections under both front seats and re-connected them firmly. i then used my peake tool to clear the codes. cleared them about 4 times. then turned off the ignition and then turned on the car. no light since (crosses fingers it stays off!!
Have you solved your problem yet. I bought the same tool and tried it tonight and it didn't work for me either. I haven't done anything to the wiring under the seats yet though. I will do that and see how it goes.
Does anyone know if these ebay tools work for the mini airbag reset?
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.