Saturday, December 18, 2010

Peugeot 206 Sound Deadening

The sound quality in my car is just average. The front speakers are good, but lacking in bass, so there is a sub woofer in the trunk to take care of the bass. But I'm not quite happy with the bass coming from the back and the fact that the sub woofer, wiring and amplifier is taking up extra space and makes the car look untidy.

So I decided to sound proof the front doors, in an attempt to get better bass and improve sound quality from the front speakers. I bought a roll of sound deadening material from the local car accessories store. It was quite cheap at US$10 per metre. Dynamat would have cost ridiculously more than that.

I installed the sound deadener and now the bass and sound quality is much better from the front speakers. It is so good that I don't need the sub woofer any more and had it removed.

My favourite test CDs are Kill Bill Volume 1 and Denon Hi-Fi Check CD.

I bought 2 metres of it. One metre for front doors and another metre for the back doors in future.

This must be from China. Could be a Dynamat copy.

The deadener is about 3mm thick with a metallic film on one side.

A single piece of deadener was cut which followed the shape of the original foam cover on the door.

Sound deadener was also applied to the door card at certain locations only.

A ring of foam was added around the speakers to isolate the sound from the door card. The speaker is a Kicker ES60.

Click here for more audio related stories

Tuesday, November 23, 2010

Thursday, October 21, 2010

ECU Update

The car had an ECU update today. The engine ECU was updated first, followed by the transmission ECU. The Peugeot Planet 2000 system was used to do all the updates and diagnostics.

This is a huge workshop, which services Audis and Peugeots. Next to it is the Audi showroom, where I had the chance to enjoy the breathtaking beauty of the Audi R8. Click here for pictures of the Audi R8 V8 4.2 FSI QUATTRO.

The Peugeot Planet 2000 system is connected to the Siemens BSI receptable under the driver's steering wheel.

The original ECU software was 9 years old, and there were many new updates since then, which took quite sometime to download into the ECU.

The technician checked all the settings one by one. One interesting finding was that the ECU was still in showroom mode... so he switched it off. Showroom mode allows customers to play around with the accessories with the engine off, thereby draining the battery. He also deactivated the original radio because the car is now fitted with a non-Peugeot unit. The transmission oil wear counter was reset. Fault alarms were all cleared. Pedal teaching was performed.

After all the updates, the car feels so much smoother and responsive now, and feels to have more power too. I managed to max out the car at 155km/h and 4000rpm. In the past it could only manage 148km/h, so there is indeed a performance gain. Related AL4 Posts

AL4 Solenoid Valves

I finally changed the old problematic AL4 transmission solenoid valves (part number 2574.10) to the newer Borg Warner solenoid valves (part number 2574.16). The transmission ECU was also updated. The transmission is now as smooth as silk!

Older valve, part number 2574.10

New Borg Warner valve, part number 2574.16

Related AL4 Posts

Tuesday, October 5, 2010

Peugeot 206 Fuel Filter

Fuel filter 1567.93.

Fuel filter is located under the rear right seat.

Tuesday, September 28, 2010

Peugeot 206 Key Fob

New key fob from

The old and new key fob. The circuit board must be transferred to the new fob.

The lion can be gently removed with a paper clip.

This chip must be transferred from the old fob to the new fob.

Thursday, June 24, 2010

Coolant Change, Engine and Radiator Flushing

Replaced the 7 years old original coolant. Supposed to use only Revkogel 2000 or Glysantin G33 as specified by Peugeot, but used Shell OAT coolant instead, since they are the same technology.

Old coolant must be collected in a container and disposed properly. To drain the old coolant, the expansion chamber cap was opened and the bottom radiator hose was disconnected.

This is how 7 years old coolant looks like. Brown just like mud water. New coolant is orange and transparent.

The thermostat and top radiator hose was removed prior to flushing the engine cooling circuit.

The thermostat.

The thermostat. Scale had deposited onto the black rubber seal. It was removed by soaking in vinegar and gently picking them off.

The top and bottom radiator hose was removed to flush the radiator separately from the engine.

Next was engine flushing. Water was fed into the expansion chamber...

...and water comes out from the other ends.

The cleaned thermostat and rubber seal put back.

Shell Coolguard OAT works well. I used 1 liter coolant with 2 liters of water. 6 liters of solution was required.

Bleed point for removing air.

Bleed point for removing air.

Sunday, June 13, 2010

AL4 Hydraulic Valve Block

After finding the AL4 transmission rebuild manual a few days ago, I had the confidence to dismantle the AL4 hydraulic valve block. The gear change has not been smooth and I've suspected sticky valves all along. The transmission oil is almost 7 years old and clocked 77,000km. Since I planned to do a transmission oil change anyway, I decided to clean the valve block before putting in new oil. Also cleaned was the oil pressure sensor, located just beneath the block.

WARNING! Don't try doing this on your own if you don't know what you are supposed to do and not familiar with hydraulic valves. Doing this wrong can permanently kill the transmission.

There are two square-shaped strong magnets at the bottom of the lid, to collect any metal bits.

Rust where there isn't supposed to be any. This is a sure sign of water getting into the transmission. In this tropical rainy weather, it is a good idea to change the oil frequently to get rid of any water.

This block is still using the old/obsolete type of solenoid valves part 2574.10. These should be replaced with the newer Borg Warner valves part 2574.16, which will require an ECU software update. But unfortunately there's no Peugeot service centre in town that can do this, so I'm stuck with the old valves for the time being. Anyway the valves are still working, so I'm not too bothered to change them yet.

These are the sequence electrovalves, EVS. I've switched EVS5 (reverse gear) with EVS2 (for 2nd gear and 4th gear) because shifting from 1st into 2nd gear is intermittently not smooth and I suspect EVS2 not working properly.

The webbing can be wiped clean using lint-free cloth. I used cleanroom wipes since I have lots of it. I also took out all the EVS and sequence valves to clean them and drain out the old oil. The main block and auxiliary block was separated to allow all the old oil to come out and allow cleaning of the webbing and plates.

The result of the cleaning and new oil is a smoother gear change.

Related AL4 Posts