Question about 1988 Porsche 911

3 Answers

Brake lights only come on with very strong pressure. how do I adjust the brake light switch? 1988 Porsche Carrera

Posted by on

  • 1 more comment 
  • spyder550dri Aug 29, 2010

    Thanks but my brake arm is attached (hinged) to he floor - there is no top per se that I can see. Are you referring to a 1988 911 Carrera? Thanks.

  • spyder550dri Aug 29, 2010

    Michael - Thank you but I have already seen this solution and it does not make sense to me. First it does not state exactly where the switch is located and I cannot locate the switch in my car. Second it involves fabrication of non-standard home-made parts which I am sure Dr. Ferry Porsche did not have in mind. Third he does not start with Porsche replacement part - it is from a 1978 Chevy! This seems like a gerry-rigged solution that involves significant extra work and is not Porsche standard. Thanks Very Much but I need to get advice from who has actually done this job. Tom

  • spyder550dri Aug 29, 2010

    Neither answer is adequate. The switch location is key and there is no switch where Bunnydawg's answer says there is. Michael's answer is one I have already seen posted and
    does not make sense as the provider had to fabricate parts vs. just replace and uses non-porsche parts. Please direct me to someone who has actually done this work.


3 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 2,272 Answers

This problems happens due to gap between the brake light switch and the brake linkage rod. Try this procedure as follows,then check out.:--- The tools required for this procedures are as follows:--- Tools
wire cutters.
wire crimp/stripper.
bludgeoning device (hammer preferred).
some socket wrenches.---------
Step 1:remove foot rest under the pedals
step 2: find round brake linkage that glides next to a Flat rod. should be about diameter of the copper pipe, goes up.
step 3: cut 2 lentghs of copper pipe the width of a Hose clamp. about a 1/2 inch long.
step 4: smash 1 of the pieces of copper pipe flat.
step 5: Pre-bend the hose clamp: get a 3 - 6" piece of copper pipe and tape it behind the Brake linkage rod, then get one of the hose clamps, wrap it around the copper pipe with adjusting nut to the right of the rod. Tighten till very firm and then Back it out...remove the prebending pipe you used, leaving the hose clamp on very (VERY) loose
step 6: install Switch...take 1 supplied adjusting nut that came on the switch, screw it on, followed by the round copper pipe that you cut followed by the 2nd adjusting nut. (the round copper pipe adds structural integrity to the switch so you dont crush the plasitc). Now take the smashed piece of pipe and tape it to the round copper pipe. This will be a spacer that goes against the Brake connecting rod. Slip it into Hose clamp and tighten. Make sure the electric connectors are pointing up. Snug it up but dont tighten it all the way...Yet.
step 7: take 1.5" of copper pipe and smash it flat, then bend it into an "L" mount the with the other Hose clamp o n the Flat bar that is next to the Brake connecting rod. The L should Press the actuator switch almost all the way in. Crank the hose clamp down, but dont strip the hose clamp.
step 8: pop trunk and remove carpet and that board to get to the brake light switches..probably have to pull 2 Fresh air hoses too.
step 9: Determine which of the 2 crappy brake light switches works best. Find the wires to the brake light switches pull one off, hop in driver seat and press pedal (make sure you can see the brake lights come on!). get a feel for when it comes on and then put the one back on and pull the other off. the one that works better is the Keeper.
step 10: on the front of the master cylinder are 2 plastic covers covering 2 holes. fish a length of wire down the hole, should drop by the brake pedal. crimp and wire female blades to the switch. in trunk, run wire safely to the pulled brake light switch wire and crimp and wire male blades to New installed wire and plugin to pulled brake light switch wire.
step 11: back in drivers seat and press brake pedal to see if brake lights come on sooner. Adjust mechanical switch on brake linkage rod. Tighten up mechanical switch. Dont crush may spin around a little if you give it the old 3 grunt twist...but otherwise it should not move.
----------- Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.

Posted on Aug 30, 2010

Click on the link below and follow the steps in the forum to fix your 1988 Porsche Carrera brake light switch problem

Posted on Aug 29, 2010

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 5,158 Answers

The switch is located near the top of the brake pedal "arm" under the dash. it turns in or out depending on whether it is too sensitive or not sensitive enough.

Posted on Aug 29, 2010

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Brake lights flicker when brakes are applied. Seem to work when clutch is engaged but intermittent when clutch car is in neutral. Any ideas?

check wiring and shorts around clutch lever, make sure its not pushing another wire onto brake light switch?

Nov 22, 2013 | 2001 Porsche 911 Carrera

1 Answer

Porsche Indicators Lights Flashing

switch off the flashing warning light to the right6. It has a red triangle on it.

Apr 21, 2013 | 2001 Porsche 911 Carrera

1 Answer

Horn keeps going off on 1999 911 porsche

Common 1999 911 problem Stephanie that needs to be repaired by a qualified Porsche mech. He will need to remove face of your steering wheel and replace horn switch that has worn out and is loose inside steering wheel. Will only get worse and could cause you issues when you hit your brakes behind car(s) stopped for red light. Trust me - I almost got in a couple of fights as they thought I was being a wise guy & "playing Porsche games".
Lew Andersen

Apr 06, 2013 | 1999 Porsche 911 Carrera

1 Answer

Carrera gt 2005 fuse diagram

Try the "WD40" trick on the Hazard Switch. Use a can with the red straw nozzle and just shoot a little into the area around your hazard switch, then move it up and down, on/off--just generally wiggle it a little bit. On many vehicles (especially FORDS, but others as well) this will allow the switch to fully disengage and return brake lights and turn signals to functionality.

Audi Air Intakes

Jun 07, 2012 | 2005 Porsche Carrera Gt

1 Answer

Porsche parking brake light and convertible top

you should be able to get to the ebrake switch by the e brake lever. If you can, to get top up you can cross the two wires going to the switch together and get the top up normally with switch. If this turns the parking brake indicator on on the dash, then order yourself a new switch and replace.

Mar 18, 2012 | 2001 Porsche 911 Carrera

2 Answers

I have a 2002 Porsche 911 C2. Where in the fuse panel is the fuse for the rear spoiler?

hello there
The fuse for rear spoiler is at the fuse section "D"
fuse number 8... 15 amp


Jan 28, 2011 | Porsche 911 Cars & Trucks

2 Answers

Hello I have a Porsche Boxster S and the brake light will not go off? I checked the brake switch under the dash and it Seems OK, I have checked all the fuses and they are all fine. the battery is fully...

Remove the brake light switch from the pedal assembly by turning 90 degrees. Pull the plunger out until it clicks one or two times. It can take some force, but your hands are strong enough. Re-install buy putting into the lug and turning 90 degrees.

The switch is self adjusting and sometimes the brake pedal hits its hard enough for the adjuster to click back in, leaving the brake lights on all the time

Dec 21, 2010 | 2000 Porsche Boxster

1 Answer

1982 911 sc brake light on, replaced pressure switch but light still on. mechanic says its not the e-brake switch. then what???

Hello there
The brake light onyou are referring to is the light under you went on dash?
This lite should come on with your hand brake on and off .If it does not go off with the hand brake down it is your hand(emergency)brake switch.It needs to be adjusted .Before you try to adjust the switch i recomend to remove your VDO clock gauge and reach with you left hand inside.
Try to locate the back connector on the light switch and gently pull it off and that reconect,this should fix your problem with the light.
If it comes back try to adjust the hand brake switch which is under the rubber cover at the handle
any more Q you can contact me


Nov 19, 2010 | 1982 Porsche 911

1 Answer

1999 Porsche Carrera 1. Code 1539 (engine light is on) 2. Code 59 (Airbag light is on) what are the problems and fixes for these two things? Thanks

code 1539 is a bad camshaft actuator on bank 2: $~$2700 repair
code 59 is either a bad seatbelt receptacle or wireharness grounding problem: ~$800 repair

I had both of these problems on my '99 carrera

Sep 09, 2010 | 1999 Porsche 911 Carrera

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

58 people viewed this question

Ask a Question

Usually answered in minutes!

Top Porsche Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers


Level 3 Expert

874 Answers


Level 3 Expert

74896 Answers

Are you a Porsche Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides