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#1 |
Wonky 'L' after Washing
Join Date: Nov 2009
Location: west sussex
Posts: 12
Casino cash: $1075 ![]() |
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I've had some pretty good results with this so I thought I'd share my experiences... I dare say this is old news to most of you.
A couple of years back the smg was missing gears and dropping into neutral, the problem got worse over time until I couldn't select any gear at all. So I called BMW service, they diagnosed the problem, over the phone, and suggested some fairly expensive repair, about £1400 plus if I remember correctly. Anyway, a friend of mine suggested I switch out the smg relay at a cost of about £5.. problem fixed ![]() About a year later the car refused to start, I had to turn the key multiple times or hold it in the on position for a few minutes to get the car started.. as you can imagine this was a pain in the butt. The problem got progressively worse, BMW suggested a new starter motor. I thought I'd try switching the relay again... problem fixed, I was pleased. From this point on I always carried a spare in the car. This morning gearbox was stuck in gear... stuck fast at first but I managed to coax it into reverse, couldn't select neutral though so couldn't start the car. Changed the relay and it started straight away... I'm a big fan of this relay. It seems to have a short life span and is definitely affected by cold damp conditions, but every time something scary goes wrong a new one seems to fix it. I wonder if anyone else has had the same experience...?? Carl Last edited by carlm5; 17-10-2010 at 11:54 AM. |
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#2 | |
S4 - Getting the hang of it
Join Date: Apr 2008
Posts: 177
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If so I have read about the issue, but not had the problem as yet..but sounds like a common one. |
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#3 | |
S5, Sport Off, DSC M-track
Join Date: Dec 2007
Location: Kent, England
Posts: 940
Casino cash: $8383 ![]() |
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Pip |
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#4 | |
S5 - Full Throttle
Join Date: Jan 2009
Location: Poland/London
Posts: 464
Casino cash: $4132 ![]() |
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Were can i find this relay in the car and how much is it? ![]() |
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#5 |
CSL Register Uber-poster!
Join Date: Nov 2009
Location: Cornwall
Posts: 7,057
Casino cash: $35793 ![]() |
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Its in the engine bay Kris,at the back,passenger side in a small black box.The salmon coloured relay costs about £5,ive got a spare one in the car,just in case.
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#6 |
Wonky 'L' after Washing
Join Date: Nov 2009
Location: west sussex
Posts: 12
Casino cash: $1075 ![]() |
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Used to be garaged, but parked outside for the last couple of years and yes that does kind of tie in with when this problem started.. might just be coincidence though..
Hi Rutkowski.. i met you once, just outside Horsham at some car cleaning place, we had a brief chat ![]() ![]() Yeah it seems to be the week link in the smg system, the first thing to fail. It obviously affects various aspects of the software. I would just always recommend checking it before panicking that it may be something serious. For a few quid it's worth having one in your toolkit ![]() |
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#7 |
Wonky 'L' after Washing
Join Date: Nov 2009
Location: west sussex
Posts: 12
Casino cash: $1075 ![]() |
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Beat me to it Bounce
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#8 |
CSL Register Uber-poster!
Join Date: Nov 2009
Location: Cornwall
Posts: 7,057
Casino cash: $35793 ![]() |
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#9 |
CSL Register Uber-poster!
![]() Join Date: Feb 2009
Location: warrington
Posts: 5,419
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Bet your problem was a sticking bonnet sensor.
![]() Ask yourself how you access the relay? Open bonnet, replace relay, shut bonnet. ![]() |
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#10 | |
S5 - Full Throttle
Join Date: Jan 2009
Location: Poland/London
Posts: 464
Casino cash: $4132 ![]() |
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![]() A little while back, after a dyno session my SMG would not go into gear - a deleting of the code fixed it but it was an experience so to speak!! ![]() |
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