Graham Posted August 13, 2019 Report Share Posted August 13, 2019 My wife was following me the other day whilst I was out in the 3 and she commented that my brake lights seem to 'come on at the last moment' the 3 still has the switch in the brake line and I wondering if this is a 'feature' of the system or if there is an issue. If former is there any sort of upgrade to overcome this, if its the after assuming its a replacement ? Quote Link to post Share on other sites
RogerH Posted August 13, 2019 Report Share Posted August 13, 2019 Hi Graham, it may be that the caliper pistons are easy to move and start the braking process before too much pressure is built up - with the brake light pressure switch lagging behind . It could be a sluggish switch - they do fail with age. Or you could fit a mechanical switch if it is possible. Roger Quote Link to post Share on other sites
Fireman049 Posted August 13, 2019 Report Share Posted August 13, 2019 (edited) . Edited April 15, 2020 by Fireman049 Quote Link to post Share on other sites
Lebro Posted August 13, 2019 Report Share Posted August 13, 2019 +1 for the mechanical switch above. my hydraulic one failed a couple of years ago. Quote Link to post Share on other sites
Graham Posted August 13, 2019 Author Report Share Posted August 13, 2019 Thanks guys just ordered a new mechanical one Quote Link to post Share on other sites
harlequin Posted August 13, 2019 Report Share Posted August 13, 2019 Graham Remove the old switch and plug the connection, I had a switch spring a leak with very exciting consequences. George Quote Link to post Share on other sites
PhilCollins1 Posted September 4, 2019 Report Share Posted September 4, 2019 Graham is not alone. My (hydraulic) brake switch now only operates the lights when I press the brake pedal quite firmly. So I have a new switch ready to fit. It will be the THIRD in eight years. This switch is widely used across the Triumph range and on MGB and others- one variety with lucar connectors and the early one with screw electrical connections. Enquiring at Moss I understood they had 60 plus in stock. Now you don't carry stock at that level unless there is a high turnover. So I have little faith that my shiny new switch, Pt No 13H2303, in its shiny Intermotor box will last any longer than its predecessors. I like the look of Tom's mod. Perhaps next time. Phil Quote Link to post Share on other sites
Drewmotty Posted September 4, 2019 Report Share Posted September 4, 2019 Go mechanical and be confident that the brake lights are on before you start slowing down https://www.tr-register.co.uk/group/devon/social-report/2017/10/0855/In-the-Garage-Autumn-Edition The hydraulic switch lags the brake application even when it’s working. Quote Link to post Share on other sites
ianc Posted September 4, 2019 Report Share Posted September 4, 2019 The advantage afforded by the mechanical switch is that, if appropriately adjusted, it will operate the brake lights with very little movement of the brake pedal, hence giving early warning that the brakes are being applied. Ian Cornish Quote Link to post Share on other sites
Lebro Posted September 4, 2019 Report Share Posted September 4, 2019 +1 for mechanical switch, easy to install, just open up the existing hole. Bob. Quote Link to post Share on other sites
Drewmotty Posted September 5, 2019 Report Share Posted September 5, 2019 9 hours ago, Lebro said: +1 for mechanical switch, easy to install, just open up the existing hole. Bob. That’s way too easy Bob Quote Link to post Share on other sites
Z320 Posted September 5, 2019 Report Share Posted September 5, 2019 (edited) +1 for the BMW switch on my TR4A, a recommendation from this forum from 2018 found an original at ebay Edited September 5, 2019 by Z320 Quote Link to post Share on other sites
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.