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Old 18th November 2021, 20:43   #11
HarryM1BYT
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Not a factory fit then after all, there are no relays in the factory fit BMW unit. Relays suggest a general purpose towing unit.
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Fix a poor handbrake; DIY ABS diagnostic unit; Loan of the spanner needed to change the CDT belts; free OBD diagnostics +MAF; Correct Bosch MAF cheap; DVB-T install in an ex-hi-line system; DD install with a HK amp; FBH servicing.

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Old 24th November 2021, 12:26   #12
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Quote:
Originally Posted by HarryM1BYT View Post
Not a factory fit then after all, there are no relays in the factory fit BMW unit. Relays suggest a general purpose towing unit.
Indeed it was not.
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Old 2nd December 2021, 18:21   #13
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Footnote
I put the trim back yesterday which was a right fiddle given the large clump of indecent scotchloks and relays preventing the main side boot trim from recessing correctly. I undid my taped and cable-tied Tidy work and re-did it so that the trim fitted in snugly.

Then I had the thought that I should perhaps have re-tested the 7-pin socket with the proprietary device before sealing everything inside. Guess what?

One indicator now doesn't work. Undoubtedly a Scotchlok. My schoolboy error though. Out it all comes again tomorrow. Pfft.
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R75 C2 RJBLH Connoisseur CDTi Auto Saloon
• Built 08/02/2005 @14:57 hrs: Registered 26/08/2005
• 122nd of 141 built that day
• British Racing Green Pearlescent (HFF)
• Sandstone leather with black piping (SPJ)
• 136,000 miles
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Old 2nd December 2021, 19:23   #14
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Quote:
Originally Posted by goltho View Post
Footnote
I put the trim back yesterday which was a right fiddle given the large clump of indecent scotchloks and relays preventing the main side boot trim from recessing correctly. I undid my taped and cable-tied Tidy work and re-did it so that the trim fitted in snugly.

Then I had the thought that I should perhaps have re-tested the 7-pin socket with the proprietary device before sealing everything inside. Guess what?

One indicator now doesn't work. Undoubtedly a Scotchlok. My schoolboy error though. Out it all comes again tomorrow. Pfft.

Scotchlocks are only of any use in my estimation as a strictly temp. get you home fix, especially when they are tucked away and difficult to get at, more so where they maybe subject to moisture or water ingress outside the cabin.


For permanent joins or those that may need disassembly in the future and dependant on location I use a variety of socket / plug connectors waterproof or otherwise, Wago's, chocolate blocks etc mainly from the offerings of such as RS Components, CPC and others.


Yes, using such as these connectors costs a little extra and a little more time, but both well spent for longevity of the joint or if the need arises for disconnections / testing.


Similarly if the bundle of your work in hand, cables, joints, relays etc has to be forced into a cramped space, then extend the loom, there are in many instances a larger space nearby where the bits will fit comfortably, even two separate locations, again more cost in time and a bit of cable but in similar circumstances it's a nice feeling when replacing covers and panels that they won't need to come off in the future for that elusive Scotchlock fault.
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Old 2nd December 2021, 20:07   #15
roverbarmy
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I remember buying a Scotchlock kit from my "friendly" motor factor rep after he demonstrated how "easy" they were, way back in the 70's. We were in late January, on one of the cold snaps near to the M62, with an HGV fleet, so the new fangled connectors were fantastic! I would say for a maximum of a week, when the salt got into them and they all dropped off! The rep had a "frosty" reception when he returned and gave me a free box of conventional joints for free! I have used Scotchlocks occasionally since, but prefer soldered and crimped connections where possible. Salted rainwater is evil for electrics! (especially commercial rear lamps!)
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Old 3rd December 2021, 14:30   #16
HarryM1BYT
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Quote:
Originally Posted by goltho View Post
One indicator now doesn't work. Undoubtedly a Scotchlok. My schoolboy error though. Out it all comes again tomorrow. Pfft.

Scotchloks are bad news, they are a quick fix, but not reliable long term. A little moisture, which you always get in cars anyway, they oxidise and the connection becomes poor, especially at 12v. Much better if you can, to solder all joints and tape over thoroughly. A quicker way is to use crimps, put again they need carefully protecting with tape to keep moisture out.
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Harry

How To's and items I offer for free, or just to cover the cost of my expenses...

http://www.the75andztclub.co.uk/foru...40#post1764540

Fix a poor handbrake; DIY ABS diagnostic unit; Loan of the spanner needed to change the CDT belts; free OBD diagnostics +MAF; Correct Bosch MAF cheap; DVB-T install in an ex-hi-line system; DD install with a HK amp; FBH servicing.

I've taken a vow of poverty. To annoy me, send money.

Last edited by HarryM1BYT; 3rd December 2021 at 14:32..
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Old 3rd December 2021, 14:49   #17
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Quote:
Originally Posted by HarryM1BYT View Post
Scotchloks are bad news, they are a quick fix, but not reliable long term. A little moisture, which you always get in cars anyway, they oxidise and the connection becomes poor, especially at 12v. Much better if you can, to solder all joints and tape over thoroughly. A quicker way is to use crimps, put again they need carefully protecting with tape to keep moisture out.
I sacked them years ago. I've been using heat shrink solder seals since then and haven't had one single failed connection - that included a full virginal cruise control wiring installation 18 months ago which has been faultless. Having said that, I put my hands up to not pulling out the great clump of Scotchloks a couple of weeks ago and remaking the connections which I should have.

The good news though is that it only took a few minutes to strip the rear trim out again this morning and find the culprit... which was a pulled connection from the 6-way relay. Scotchloks are still crδp though. All sorted.

Dougie.
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• Built 08/02/2005 @14:57 hrs: Registered 26/08/2005
• 122nd of 141 built that day
• British Racing Green Pearlescent (HFF)
• Sandstone leather with black piping (SPJ)
• 136,000 miles

Last edited by goltho; 11th January 2022 at 00:45..
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