Sunday, 25 September 2011

307cc wiper refill change

The wipers needed changing on the car. I was near a Halfords so I had a look - they wanted about £40 for the whole blades.
I had a look at the refills and they didn't have the right length - the passenger side one is 28" which is huge, they only did 22" refills.
I went online and picked up picked up a pack of 2 28" refill rubbers on Amazon for about £5 delivered.


I removed the wiper from the arm but couldn't work out how to get the rubber out.
After checking a couple of Youtube videos I managed to remove the rubber but could not reassemble it with the new rubber. This was due to the length, it was impossible to pull all 28" of the new rubber into the casing using the methods shown.
I worked out how to do it in about 5 mins per wiper.

See Fig.1 for a diagram of the wiper blade after removal form the arm. 
Fig.1 


Follow the steps below to fit the new rubbers.
Equipment: Pliers, scissors

  • remove the blade from the wiper arm on the car by squeezing the plastic clips and sliding it. You may need a bit of force as it could be slightly seized.
  • with pliers, squeeze gently as shown in Fig.2, this should loosen the central metal clip enough for it to come away from the blade.
Fig.2 
  
  • pull out the old rubber.
  • with fingers, squeeze the metal strips near the ends as in Fig.3 to remove each of the end clips and completely disassemble the blade, there may be another 2 plastic clips along the blade to remove. 
Fig.3

  • you should be left with 2 metal strips, 2 plastic end clips, 1 middle metal clip and 2 small plastic clips.
  • make sure your new rubber is the correct length If not, just cut with scissors as a knife may not make a clean cut.
  • lay one of the metal strips on a surface with good lighting.
  • starting at one end carefully push the rubber onto the metal strip, once you get it started it is fairly easy to get it all the way on - make sure the "wiping" part of the rubber is on the inside of the curve.
  • get the other metal strip and do the the same as in the previous step, this is slightly harder, you just have to make sure it is fully in the groove all the way along.
  • Clip on the end clips - you may have to trim a bit of rubber depending on the shape of the rubber.
  • to attach the central metal clip you should be able to force it on by hand depending on the hardness of the rubber, if not use light force with the pliers as too much may tear the rubber - make sure it is in the correct location or there is a chance the wipers may collide during use.
  • reattach the small plastic clips if you have them.
  • reattach the wiper to the car.
for the driver side you'll need to cut the new rubber down a few inches before step 7.



Friday, 22 April 2011

307cc waterlogged ECU fix

The problem 


According to the Internet this seems to be a common issue with 307cc models from 2005-2007.
It happened to me with my 2.0L 2006 model (EW10A engine type). 


I was driving home from work and the car juddered and I lost engine power and the brakes. I was lucky enough to have a grass verge beside me and I pulled on to it. After that it wouldn't start and I had it towed to a garage.


The dashboard display was showing "Engine management failure" warnings and the engine management light was constantly on. The engine would start but had no power, I had my foot fully down but  it had as much power as it has when idling. 


After a while looking the mechanic identified it as waterlogged Engine Control Unit (ECU). He pulled it out and dried it with a hair dryer. That cost the best part of £200 but the car was running again. 


A few days later the same thing happened, luckily I was nearly home and I was able to roll most of the way down the road and park it up.


After searching various forums I identified the problem to be coming from a leaking coolant temperature sensor (do a Google shopping search to see what it looks like) on the side of the engine block. It turned out that the sensor had developed a crack and coolant was tracking through the sensor, through the connector, up the inside of the wire (between the metal of the wire and the plastic insulator (see Fig.0)) loom and gathering in the ECU. It was also leaking coolant down the side of the engine block.
Fig.0 - cross section of wire from CTS to ECU



If this happens to you STOP DRIVING IMMEDIATELY and try the method below. If you carry on driving you risk the ECU getting damaged by short circuits or chemical damage from the coolant. 
I was quoted anything from £400-£1000 to fix including new wiring looms, ECU and labour. Some people online paid up to £1200. I managed to get it done for about £20.






The fix


What you need: 
Coolant Temperature Sensor (about £15 from a Peugeot parts shop or Ebay)
Silicone sealant (gun type) 
Tools (knife, screwdrivers)
An airing cupboard
About 5 days use of another car while your 307 is out of action. 

Fig.1 - Layout of the 307cc 2.0L engine



  
Instructions:


ECU:
  • Removed the ECU from its bay to the right of the battery as you look at the engine.

  
  • Remove the metal plate the ECU is bolted to.
  • Remove the 4 screws on the ECU and cut away the seal between the two halves.
  • Carefully prize apart the two halves of the ECU - not too much as you could crack the circuit board - just enough so you can fit a pencil in the gap - and leave it in there.
  • Put the ECU in an airing cupboard (or warm, dry area) for about 5 days - make sure one side is held open with the pencil for the whole time so the moisture can escape .
  • After the 5 days, reseal with silicone and leave to dry overnight. 


  
Engine:   
  • Remove the engine cover, air-box, battery and battery cover from the engine bay to give you better access to the coolant sensor, you may want to move some wires too but note where they go because they are all similar. (see Fig.1)
  • Remove the retaining clip holding in the Coolant Temperature Sensor (CTS), be aware that it could fall out and leak coolant.(see Fig.2)
Fig.2 - you'll need to move the wires from the area as there's not much space

  • Quickly swap the old CTS for the new one, be sure to find the old ring seal as you may need it for the new sensor (my new one didn't come with one).
  • Replace the retaining clip and dry around the area with a towel so you can easily see fresh leakage (feel underneath the CTS with a dry finger)
  • Dry the plug at the ECU end of the wining loom (its the one that plugs in on the right).
  • Put the engine cover, battery, cover, air-box and wires back in place.
  • Replace thy ECU and plug the wires back in.
You probably lost a bit of coolant while replacing the CTS so bleed the cooling system by driving for a few minutes, stop facing uphill, open the bonnet, open the coolant filler cap. 


Using something small - not your finger as it will be hot - press the valve (like a car tyre valve with similar screw-cap) in the area just above and to the front of where the CTS goes (see Fig.2). You should get some air coming out then water (like bleeding a radiator).


You may also need to top up the coolant if the level is too low.
Check the area around the CTS after every few drives to make sure there is no leaking.
Also remove the plug from the ECU and check no moisture has returned, if there is it will be remnants from the wire pre-fix (not much but enough to cause a problem should it get in the ECU circuits). If there is dry the ECU plug and/or suck some more coolant out of the plug.


Thanks to Peugeotlogic for the details.