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986 Litronics upgrade


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Have had a 986 with factory litronics, and have retrofitted them to my current 986 (and got it through its MOT), have done my own research and spoken to MOT testers, and feel I can speak with some authority on this.
 

On 10/25/2020 at 6:46 PM, ½cwt said:

I think retro fit of Litronic is a significant undertaking

Literally plug and play, albeit you don't get self-levelling and washers (see further below), but contrary to popular belief [and what the internet says], these aren't required for your car to be road legal, in the UK.

 

On 10/25/2020 at 5:24 PM, JungleGus said:

- The headlight unit is plug and play with factory 986 Litronics

Yes.

 

On 10/25/2020 at 5:24 PM, JungleGus said:

- There's a fuse that needs to be changed from 15A to 30A (20? Can't recall which one off the top of my head)

Fuses A9 and A10 need to be 15A each (they were already on my 986 equipped with halogens).

 

On 10/25/2020 at 5:24 PM, JungleGus said:

- The self levelling system with suspension sensors is a nightmare to wire in, so essentially a no go, and an MOT fail

- The non-existent headlight washers will be an MOT fail (although, easily switched out come MOT time...)

Neither of these are required for MOT. TLDR version: If a car has HID lamps and is fitted with washers and / or self-levelling device, they need to work. If your car doesn't have them, they can't be tested (hence they can't be failed).

Discussed this with my MOT tester, and have had no issues getting my 986 with retrofitted litronics through its MOT. It is worth spending £15 or whatever getting the alignment of the lamps checked, however, before you fit them.

 

If anyone wants to debate this:

https://www.gov.uk/guidance/mot-inspection-manual-for-private-passenger-and-light-commercial-vehicles/4-lamps-reflectors-and-electrical-equipment#section-4-1-4

Quote

4.1.4. Compliance with requirements

...Existing halogen headlamp units should not be converted to be used with HID bulbs. If such a conversion has been done, you must fail the headlamp...

The above refers to using HID bulbs in [most] reflector (ie halogen) units.

 

Quote

 

4.1.5. Levelling devices

...Vehicles with high intensity discharge (HID) or LED dipped beam headlamps may be fitted with a suspension or headlamp self-levelling system. If these systems have been fitted, they must work...

 

Self-explanatory.
 

Quote

 

4.1.6. Headlamp cleaning devices

You must inspect vehicles first used on or after 1 September 2009 equipped with headlamp washers.

 

Highlighted relevant section above, however in reality, this does not apply to the 986 due to the age of the vehicle.

 

 

 

 

 

Hope this is of help. I compiled a similar post, when I got into an argument with @The return of Marty Wild about this back in Jan, however he then decided to delete his thread (hence my reply) - I was rather miffed by this, as it took some time to compose.

 

@Araf, am not one to blow my own trumpet, but is there any chance the relevant bits could be stickied somewhere?

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Did this along time ago, the full electronics/self levelling is a simple and seperate loom that can be retrofitted.

The mounts are there for the sensor, both on the shell and on the suspension arm, a single run of wiring goes to the ECU mounted under the frunk. 
The washers are straightforward to fit also, either wired in correctly or through a simple relay switched through the lights. 
 

Well worth doing

 

:)
 

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  • 4 weeks later...
On 11/2/2020 at 5:22 PM, Duffy3074 said:

Did this along time ago, the full electronics/self levelling is a simple and seperate loom that can be retrofitted.

The mounts are there for the sensor, both on the shell and on the suspension arm, a single run of wiring goes to the ECU mounted under the frunk. 
The washers are straightforward to fit also, either wired in correctly or through a simple relay switched through the lights. 
 

Well worth doing

 

:)
Would you be able to provide details of the process for connecting the sensors to the ECU?

Thanks

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