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Discussion Starter · #1 ·
Decided to open up a pair of 2019 TVL SCS rear turn signals. Working at 4K miles, died at 6K miles, opened at 12K miles. Dealer here in So. Cal. would not honor a 6 year warranty on them.

First of all and in order tonget into them, you have to bust off the lens. There's a design problem. What I found was shocking! What is all that crap? It appeared to be brake pad dust. It was magnetic. No wonder the damn things failed. Seriously? This is how a $23K motorcycle gets built? The BMW guys (yes, I shared it) are having a chuckle about this one.

The last picture is a signal with some of the crap wiped off. Can't wait to take the front ones apart when they fail.
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I have no direct knowledge about the TVL turn signals, just speculating here, but many car light assemblies are sealed with butyl rubber. If you heat them in an oven at about 275F for 20 minutes you can soften the butyl seal and pry open the assembly.
 

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Yup that's VERY common. (that's in no way condoning the fault but just giving you a frame of reference) Mine looked the same. I changed them out for different sealed indicators that they use on semi trucks that are made for ALL WEATHER CONDITIONS lol

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Could I place my bet on that being the Right Hand Side turn signal?

That is probably exhaust fumes and not brake dust. Firstly, you probably don't use the rear brake that much and secondly pads are organic and non-magnetic.

Engine exhaust, however, contains microparticles from engine wear and other crap. Much finer particles too.

That anything gets into the housing is a problem. I believe there is a drain hole on the lens bottom for water egress.

Is one side worse than the other?
 
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Discussion Starter · #5 ·
Just hate to shoot down your reasonably constructed theory however....the pictures are both rear turn signals. They were equally nasty. And yes, I do use my rear brake frequently. I find it quite useful for the twisties. And finally, I did not find any drain holes whatsoever.
I have ordered an alternative replacement set from a third party vendor. I let the dealer off the hook for any warranty claim however he wasn't inclined to warranty them anyway.
 

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Damn. Thought I was onto something.
What is your theory on how that nastiness got in there?
Also, kudos for being a rear-brake user. So many are not.
 

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Discussion Starter · #7 ·
When the lighrs were removed, both of the wire assemblies came loose from inside. There is a rubber grommet in the assembly where the wire exits. I found corrosion inside on the soldered connections. The wiring is installed with no drip loop. I am guessing that water combined with road, exhaust, and brake pad grime got in there. I do ride in the rain quite a bit.

It is just an awful design. It would be so simple for MV Agusta to re-design this cheap-ass LED to work effectively.
 

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Interesting and plausible theory.

Are you going to affect a repair, or just replace with something else?
 

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Discussion Starter · #9 ·
I purchased T3 modular switch pods and a license plate holder from Denali Electronics.
 

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Decided to open up a pair of 2019 TVL SCS rear turn signals. Working at 4K miles, died at 6K miles, opened at 12K miles. Dealer here in So. Cal. would not honor a 6 year warranty on them.

First of all and in order tonget into them, you have to bust off the lens. There's a design problem. What I found was shocking! What is all that crap? It appeared to be brake pad dust. It was magnetic. No wonder the damn things failed. Seriously? This is how a $23K motorcycle gets built? The BMW guys (yes, I shared it) are having a chuckle about this one.

The last picture is a signal with some of the crap wiped off. Can't wait to take the front ones apart when they fail.
View attachment 487647 View attachment 487648 View attachment 487649 View attachment 487650 View attachment 487651 View attachment 487652
It is certainly perplexing the thinking , or lack of, that went into these turn signals.
The fronts are about as complex in their construction as the rears are , and as difficult to get apart to repair.
The are glued together , so no amount of heat will get them apart. I used a very thin disposable blade and cut along the join of the black plastic backing and the front clear lens. It's not for the faint of heart as they can break easily, especially getting into the corners. Maybe a dremel would work better to do the cutting and then a clear silicon to glue it back together after the repair.

487660


I bought 12 of these led's for about $20 , enlarged the mounting holes of the plastic chrome mounting plate of the originals and siliconed in the new ones once the backing and front lens was taken off.


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I let the dealer off the hook for any warranty claim however he wasn't inclined to warranty them anyway.
This is a really sad statement about that dealer.....who is it? That dealer does not deserve anyone's business and should lose their franchise.
 
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I live in Western Australia. Normally no rain but had wettest July for last 20 years.
Mine's a 2019 TVL RC SDS and I had both rear indicators replaced under warranty as LEDs partly failed in rears.
One of my replacements, the right, has condensation inside. I'm deducing therefore that moisture is getting in and mine will look like yours soon. I've lodged another warranty.
Of note is the newer models have different rear indicators. I wonder if the new ones are any better.
 

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My “21 TV RC was delivered to me new with an already failed left rear directional. That was six weeks ago, still waiting for the replacement (under warranty). HOWEVER, everything else on the bike has performed flawlessly, with >2000 miles, half of them commuting in stop&go traffic, with air temps 93-100F. I’m keeping my 20yr old BMW for when the MV is down (inevitable?) for repair, but so far the bike has performed exceedingly well around town and across 5 state lines.
 

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Discussion Starter · #17 ·
Denali Electronics T3 modular turn signals with a license plate holder bracket installed on the TVL.
Unbelievably bright!
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My “21 TV RC was delivered to me new with an already failed left rear directional. That was six weeks ago, still waiting for the replacement (under warranty). HOWEVER, everything else on the bike has performed flawlessly, with >2000 miles, half of them commuting in stop&go traffic, with air temps 93-100F. I’m keeping my 20yr old BMW for when the MV is down (inevitable?) for repair, but so far the bike has performed exceedingly well around town and across 5 state lines.
Hope you have the mark 2 clutch. My warranty claim for clutch sleeves has been approved but still waiting 6 weeks later.
 

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Discussion Starter · #19 ·
Please look at my post from last year about my problems with the first generation SCS. You might want to insist on an upgrade....
 
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