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Thread: 406 Hdi ownership

  1. #26
    Fellow Frogger!
    Join Date
    Nov 2010
    temora nsw

    Default LHTurns

    DECCA.Wrap some dence foamed rubber around turn stalk tostop lever from flicking to left hand turn position. No problems since TOMFROG TEMORA


  2. #27
    Fellow Frogger! Decca's Avatar
    Join Date
    Jul 2004


    Thanks Tom, but car no longer exists.
    Sounds like an obvious fix.
    I opened up the Com2000 box but found no way to adjust it. I think it boiled down to poor design.

    Present --2016 2008Outdoor / 2014 RAV4 Diesel (My utilitarian beast, now with A/T tyres...)

    Past -- 19?? 403 / 1974 504GL / 1972 R12TL / 1995 405SRi / 1997 406ST / 1998 306XT / 2004 406HD1 / 2008 308XSE HDi / 2008 307XSE

  3. #28
    Join Date
    Jan 2011
    Gold Coast, Australia


    I bought a 406 HDi 2.0 litre sedan in August 2009. It was my first experience with both diesels and Peugeot.
    I love the car, but there are a couple of quirks of which potential owners should be aware.

    1. The handbrake ratchet is weak and breaks. I need a new handbrake assembly about every eight months. Fortunately they are only $125 (roughly, as best I can recall).

    2. There are two oil flow monitoring solenoids in the transmission that are notorious for failing. If/when these fail, the car will be close to undriveable until the oil has reached operating temperature. Before it reaches temperature, a feather-like touch is required on the throttle. If you use more than a feather, the transmission will slam (and I do mean slam) into limp-home mode (you lose overdrive), the warning lights flash and a huge transmission fault warning will appear on the trip computer screen. No cause to have a cow over that. Just pull over, let the turbo wind down for 30 seconds or so and then turn the engine off and restart it. This resets the engine/transmission computers and the car will be fine. Replacing the solenoids costs about $600. If you have it done anywhere other than a Peugeot dealership, provide the workshop with the genuine Peugeot transmission fluid. Do not under any circumstances allow them to use anything other than the genuine Peugeot transmission fluid. I had a bad experience with a self-proclaimed tranmission guru who used a Penrite product that was supposed to be a match for the Peugeot fluid. It was not. As best I have been able to determine, there is nothing that is a match for the genuine Peugeot fluid, which is Esso ATF 4HP20 AL4.

    3. When the Peugeot manual specifies particular viscosity grades and types for engine oil take it seriously. The 2.0 litre diesel runs best on a synthetic 5W-40. I have tried various motor oils and learned the that the engine is very fussy. The one that I have found makes the engine 'happy' is Shell Ultra 5W-40. I can feel the difference on every level. Compared with other oils it is like driving on liquid silk. Penrite's 5W-40 turbo diesel semi-synthetic oil is okay, but if you refill with the Shell product you will feel a difference in favour of the Shell full synthetic.

    4. I would humbly suggest that you invest in a turbo timer. Call me an old-fashioned belt and braces sort of fellow, but I cannot bring myself to turn off a turbocharged engine until it has had at least 60 seconds to idle down.

    5. The engine prefers full-mineral diesel. It runs rougher on ethanol blended diesel and it uses about 10 per cent more fuel, presumably because of the lesser energy potential of ethanol.

    6. Keep an eye on the upholstery. I have had to have all the seats and the door inserts reupholstered because the stitching gave way (rear seat) or the fabric parted company with the stitching (front seats). The auto trimmer muttered something about the standard of the factory upholstery work being rubbish.

    7. If you want to improve on-road performance, there are a couple of options. Powerchip in Sydney will remap the engine management computer for $1,200. That is an extortionate price for a software entry, in my opinion. The option I chose was a German company called Race Chip Tuning.


    For about $400 they sold me a chip that plugs in between the engine management computer and the fuel-injection rail, which they claim gives significantly more power and torque. I cannot remember the power figure, but they claim a 30 per cent increase in the torque output.
    There is a noticeable difference, especially in the mid range. Fuel consumption will increase slightly. Mine increased from 5.1 litres per 100km to 5.6 litres per 100km. For such a huge increase in power and torque I think that is a small price to pay.

    8. Another two faults for which the 406 diesels are notorious are the wastegate solenoid and the speedo. When the wastegate solenoid fails the gate will simply fall open. You will lose turbo boost (it will be vented straight into the exhaust system). The tells are that you will have no power and that every time you plant your foot there will be a huge cloud of unburnt diesel smoke in your wake. The fix is a new solenoid, which costs about $120. While you are waiting for the part to arrive, you can get around the problem by stealing the EGR solenoid that is sitting right beside the wastegate solenoid. Just do not tell the greenies. The problem with the speedo appears when it begins to fail/falter intermittently. Look at either the pickup on the transmission, or (if you are unlucky) the soldering behind the instrument panel. In the case of my car it was on the pickup, which cost about $160 to replace.

    Having said all those things to watch for with the 406 HDi, I love the car and would not hesitate to buy another Peugeot. Now that those glitches have been fixed, every moment in the car is a pleasure.
    Should you have a situation that requires emergency braking, you will discover that the 406 has a fantastic braking system and that the ABS is extraordinarily good.
    Last edited by CarlT; 8th January 2011 at 07:28 PM.

  4. #29
    Join Date
    Apr 2012
    Teesdale, Vic, 35km from Geelong

    Default Thanks, Carl T

    Thanks for the great rundown.
    Makes a lot of sense to me all your saying, and I'm all ears.

    I've recently acquired a 406 diesel wagon. 2003, 240 000, but auto . Kept very well, great nick, best car ever driven, but pre owners experienced the limp home mode a couple of times so I'm reading up lots of sites and threads. .. "AL4, AL4.."

    One thing, the Haynes manual sais the ESSO LT71141 , but the 406 original handbook specifies "ATF 4HP20-AL4"

    thanks for the great posting, again.

  5. #30
    1000+ Posts BIGRR's Avatar
    Join Date
    Feb 2006
    North Rocks, Sydney


    Quote Originally Posted by Gavin Gamble View Post
    Thanks for the great rundown.
    Makes a lot of sense to me all your saying, and I'm all ears.

    I've recently acquired a 406 diesel wagon. 2003, 240 000, but auto . Kept very well, great nick, best car ever driven, but pre owners experienced the limp home mode a couple of times so I'm reading up lots of sites and threads. .. "AL4, AL4.."

    One thing, the Haynes manual says the ESSO LT71141 , but the 406 original handbook specifies "ATF 4HP20-AL4"

    thanks for the great posting, again.
    Does the car have an AL4 gearbox?

    If you Googled "AL4 problems" (Reading the articles will give you something to do for quite a while, sorry)

    I drove my daughter's 306 Xsi today with AL4 gearbox, cruising excellent, though changing up and down under cruise speed is terrible, recently spent a fortune on the box with at least 5 trips back to Peugeot dealers and then gave up (and I don't give up easily). The car has only travelled 110k km!
    I would not recommend one of these AL4 gearboxes to my worst enemy.
    Present fleet:-
    Peugeot 93' 205 Gti 16v
    Peugeot 73' 504 Ti from new
    Peugeot 08' 407 Hdi Coupe from new

    Previous fleet:-
    Peugeot 95' 605 Sv
    Peugeot 92' 205 Gti
    Renault 72' 16TS from new
    Renault 69' 10
    Renault 71' 10s
    Renault 68' 10 from new

    "Be reasonable do it my way!"

  6. #31
    Join Date
    Jan 2011
    Razorback, NSW

    Default ECU Upgrade

    I avoided the expensive ECU upgrades and did mine myself, which has turned a slug (see earlier my post in this thread) into a far more capable car with no side-effects noted after 30,000km or so. Wife loves it, it's safer pulling out into fast rural traffic and saved us upgrading to a newer car.

    I followed info here http://www.406oc.co.uk/viewtopic.php...ilit=ecu+remap, purchasing a KWP2000 USB OBD2 from eBay, and uploading a new ECU map from here: http://www.obdcar.com/powertuning/re...bosch,soft_041

    Total cost about $50 versus $400 or $1000 means someone out there is making insane profits every time you pay them to do yours for you.

    2002 406 D9 HDi 2.0 7-seat 5-sp wagon

  7. #32
    Join Date
    Dec 2010

    Default 406 HDi Automatic Economy

    Just for the record. Photo taken after last refuel.

    406 Hdi ownership-406display.jpg

  8. #33
    Banned orestes's Avatar
    Join Date
    Mar 2004
    Sunshine Coast


    Interesting thread, I've been looking at a D9 with about 190k kilometers on it. I'm a little worried with the HDi relative lack of power, but it seems you can get them chipped for about $400, or less if you do it yourself. If I went with one of these I'd be looking at keeping it for the long term, what bugs could I expect?

    I'm comparing it to a C5 HDi but a lot of the cheaper C5s are 4 speed autos and the 4 speed auto in the Citroen is a known problem and if I spend $10k I probably wont be looking at either cars as Mk. V Golf TDis are starting to come in in that price range.
    Last edited by orestes; 5th February 2013 at 01:36 AM.

  9. #34
    Join Date
    Apr 2005

    Default AL4 / 4HP20 / DPO transmission oil - LT71141 replacement

    Quote Originally Posted by Gavin Gamble View Post
    One thing, the Haynes manual sais the ESSO LT71141 , but the 406 original handbook specifies "ATF 4HP20-AL4"

    thanks for the great posting, again.
    Total Oil supply the specific oil too - Total Fluide AT Long Life
    The spec sheet is available hat http://www.totaloil.com.au/Pages/content/NT0000C0CA.pdf

    I get mine from Shannon at www.oiloutwest.co.nz which is the local branch of Oil Imports (Total Oil NZ distributor).

  10. #35
    1000+ Posts
    Join Date
    Mar 2011

    Default Struts

    Quote Originally Posted by Ymer View Post
    Bought my first ever Peugeot a few days ago: a 2003 406 D9 ST HDi 2.0 Wagon Auto that has done 85,000 kms. Well, more like 86,000 now, I think.

    Wear and tear:

    • Original CD stacker was replaced by an aftermarket Kenwood
    • Plastic handle for driver's seat tilt comes off
    • Rubber strip on driver's side door sill misses some clips

    Otherwise in good nick for a 7-year old car.

    Fuel consumption:

    • 6.1 L / 100 km for mostly country driving and some town driving

    Driver's manual:

    • A bit short on technical information; e.g. no details on type of fog light bulbs and how to replace them.


    • I'm horrified that I bought a car with McPherson struts. First one ever. Nevertheless, the car handles confidently. Just hate to think what could happen if I hit a pothole.


    • This level of electronics is another scary first for me. Keeping my trusty 1978 SAAB 99 (120,000 kms) on stand-by, just in case...

    Trim and Accessories:

    • Cloth-covered seats a very big plus! (as compared to leather)
    • No complaints about the number of buttons, switches, dials, displays, and warning lights. Heaps more than in any of my previous cars.

    Hope this information was useful.
    Hi,Interested in your comment re pug struts.Struts were actually a French invention,not English as some say.From the 80's through to the 90's Peugeot regularly had the fastest cornering cars in the World,continually beating the outlandishly expensive exotic cars of the day.Interestingly I knew the gent who imported Saabs into Australia....his name escapes me at present.Cheers.

  11. #36
    TEC is offline
    Join Date
    Jun 2015


    I have a 2003 406 HDI Manual. Fantastic car. 197000 trouble free kms. Only problem was the dreaded indicator fault. I fixed that with a bit of sponge rubber shoved down beside the stick. Worked a treat.406 Hdi ownership-p1140668.jpg
    DieselLion likes this.

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