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is the 407 as reliable as the 406?

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16K views 48 replies 9 participants last post by  Martin68  
#1 ·
I have just bought a 407sw SE 1.6l deisel estate to upgrade from my 1999, 406 1.8 petrol estate.

I have read many concerning reviews since, saying that the 407 is prone to lots of regular and common faults, with many saying that it's the worst car they have ever owned in terms of reliability, naturally i'm finding this very concerning and am wondering if i made the right choice

So is this a less reliable car compared with my 406 petrol? or is it luck of the draw as it was with my reliable 14 year old 406?

my new(to me) 407 (which is a 54 plate and has 83000 on the clock) has recently had a new turbo and new clutch fitted, i was told that its common for the turbo to blow at around 80000 miles, is this true?

I paid ÂŁ2491 for this car and it's in emaculate condition, is this a good or fair price?

I have owned my 406 for 10 years and the only problems i have had was frequent exhaust replacements. the engine has never given me any problems, but the electrics are starting to play up, with the aircon no longer working, the speedo needle drops to zero while driving and the airbag light is constantly flashing, apart from that she's been the most reliable car iv'e ever owned, hence keeping her for 10 years! could a 407 be as good for as long?
 
#2 ·
Blown turbos are down to poor servicing , if engine not flushed well after turbo change you could be looking at another turbo blowing , unless they removed the filter in the oil return pipe , personally I wouldn't have bought but good luck with it anyway ,
Maybe not the answer you wanted but that's just a worst case scenario , it could be fine .


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#3 ·
Now i am worried i have just wasted my money!
This is my first deisel car, i bought it because i am expecting it to be cheaper to run (fuel, tax and insurance, compared to my petrol V reg 406)

I thought that because its got a new turbo in it, that the car would be more reliable than one with the old original turbo as i was told by the seller that its common for turbos to blow at arround 80'000 miles.

What would you advise i should do to ensure that the new turbo last ?
i don't know anything about deisel cars, i have always had petrol before and only ever had to change the oil and filter in them after every 10'000 miles, dose this still apply with turbo deisels? or are they more fussy to maintain reliability?
 
G
#5 ·
To ensure the turbo will survive, get the oil changed and the turbo oil return pipe/filter replaced. If you then keep up good regular servicing, the turbo will be fine. I don't believe the dealer is right saying its 'normal', thats probably just to put your mind at rest as that car has had a new one already.

Diesels are no more hassle than a petrol, and in my opinion, if well looked after are generally better wearing than a petrol. I think services on the 1.6 and every 12k miles. You've got quite a lot to learn about the diesel engine in your 407... they aren't like diesels of past, and are quite technically complicated nowadays.
 
#7 ·
like yourself i went from a 1.8 petrol 406 (Rip:rolleyes:) to a diesel 407, mine was a 2.0 hdi and i had that old girl for 6 years and it was as reliable as my 406 had been, on my second 407 now so hoping for the same. Its all about servicing and a realistic outlook, mechanical things break sometimes but you can stay on top of things.
But in answer to your question My last 407 was as reliable as my 406 :thumb:
 
#9 ·
I agree peugeot are trying too hard to make the 407 compete with the german manufacturers cramming in too much electronic wizardry that being french WILL go wrong eventually

The 406 was the paris taxi did not pretend to be anything more and was all the better for it
 
#13 ·
so what happened inbetween? it seems the 406 was better than the 407, i was expecting a 408 to come on the market, but it appears that the 4 series has been changed to a 5 series, so we have the 508, which is as good as the 406, so why did Peugeot make a "lesser" car design inbetween being the 407?

I wish i could find a 508 in my price range!
 
#11 ·
thanks for that. I have noticed that the build quality isn't as good on the 407, several features are cut down, for one, the fuel filler door has a finger hole to pull it open on the 407, yet the 406 had a nice internal lever. the bonnet had hydrolic arms on the 406 but the 407 has a metal rod to prop it up with, i'm sure i'm going to notice more "less well built" features as i use this 407.

while on the subject on reliability, when should the timing belt be replaced on the 1.6 diesel? i'm on 86000 miles at the moment.
 
#15 ·
Its the same as the 306 vs 307, I think the 306 was more mechanical than electrical so there's less to go wrong.

You also have to be wary of getting the Mk1 of any new car because no matter how much testing its undergone, the owners will be the long term testers / guinea pigs.

When the 307 was first launched it had plastic wings. But over time the colour faded. Same with the indicator stalks breaking and the ABS sensor gap. But these issues were resolved.

But they then discontinued the 307 and the cycle begins all over again with the 308.
 
G
#18 ·
Changing wheels over won't cure it and would probably make car throw more warnings up.

The sensors are attached to the valves, as trem has already said check your wheels for standard valves, tpms one are aluminum with a nut on down the stem search eBay for 407 tpms to get an idea of what to look for.

You can't sort with out diagnostic equipment, if any are missing it'll cost around ÂŁ100 a corner to sort, this plus valves corroding and snapping makes owners turn the system off as it's cheaper and you won't have repeat problems.

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#19 ·
I have checked youtube videos regarding tpms and now i realise that they are battery operated sensors in the wheels themselves, they send a radio frequency to the cars computer.

If this is the case, will new sensors have to be programmed to the car using planet?

In my peugeot, the tpms has been disabled according to the lcd display, so how come i still keep getting a puncher warning on the off side front wheel?
dose the puncher warning use a different set of sensors?

If i bought 4 new tpms sensors for the 407, would any tire changing garage be able to replace them? and iff so, will i need 4 new tiers or can the existing tires be refitted?
 
G
#21 ·
Yes new ones need coding to car with planet and a forcing tool, most tyre places can remove/refit but not all can code them to the car.

If your sure they've been disabled then it sounds like someones turned them off but not in all the right places, seen it before.

For all four plus tyre fitting and coding you be lucky to get change from ÂŁ500.
You won't need new tyres unless they are passed it.

Turn them off.
 
#20 ·
there a PITA get them switched off and save the hassle :nod: While we're at it, has your car got locking wheel nuts ??? if so can you get them off ???are you sure ?? have you tried........................this is another all to common issue only found on the side of a dark/wet road somewhere :nod:
 
#22 ·
where do i have to take it to get the puncher warnings switched off? Peugeot dealer or anyone with planet?

Good point about the wheel nuts, they are locking, i have only owned this car since Saturday just gone, but I plan to take it to my local garage to get it checked over, and ask them to try the wheel nuts.
As i need to find out whats causing the wheel rattle. i had this rattle on my 406, and was told its the bushes, could this be the same on my 407?
 
#24 ·
Just been reading down the thread and noticed the comments on how to make the turbo last etc....

Basically, is the turbo return pipe easy to replace? big job? and is there a separate filter apart from the oil filter itself? can it not just be taken off and cleaned out etc?

Secondly.....engine flush......yes or no? :confused:

I"m changing oil every 10k:thumb:

thanks ,
Cliff
 
#26 ·
I am finding that when i pull out of junctions in 1st gear and put my foot down to get the car to move quickly, that sometimes it feels very powerless and sluggish, i then have to take my foot up off the pedal and then press the accelerator pedal down again for the power to kick in.
Other times i have power straight away.

Is this a fault or common?
 
#33 ·
I think i bought a lemon!

My 406 did 157000 miles and was hardly serviced, was 14 years old and still drove like new, yet this 407 which ive only had for 3 weeks has 86000 miles on the clock, but keepts surprizing me with a raft of new problems, i'm starting to think i bought a lemon and regret getting rid of my 406.

Today while driving into Swansea to meet a guy with pp2000 (to get him to activate my retrofitted cruise control) I suddenly had two pleeps and two warning flash up in the dash board, first one was " ESP ASR system faulty" and then another warning saying "Depollution system faulty"

When i got to the guy and he connected his laptop onto it, the Engine ECU returned 7 faults.

I have attached the pp2000 report and the warnings i'm getting.
Also there feels a total lack of power, I had to change down to 2nd gear to get up a hill which i can normally do in 5th, theres something seriously wrong here, but will it mean a serious repair bill?

any help greatly appreciated.

my friend with the pp2000 says i should clean the EGR valve. and replace the air filter, but what else needs doing?
 

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#34 ·
not that clued up on the fault codes but someone will be along soon with more knowledge, the esp/abs will be a sensor quite a common fault and cheap to fix but you need pp to confirm which abs sensor is faulty.
Not sure on the other faults but Gibbo or Betty or Even David will know a whole lot more.Could even try popping over to 407owners and asking as Risky is good at these but spends his time over there
I'm guessing you've found the reason why the last person got rid of your car but when you get them sorted it'll be worth it
 
#35 · (Edited)
Normal procedure is to cancel the codes then try a short drive to see which ones reoccur. 407's often throw up spurious codes along with correct ones. egr valves and glow plugs are quite common faults, read spark plugs as glow plugs on the faults read out.
 
#36 ·
I feel totally put off this car now, as it has lost power and had a new turbo fitted.
I bought it from a trade place but they sold it to me as a trade sale with no gua, but because it was from a trade outlet, i thought it must be ok, how wrong i was.
I think they changed the turbo (it looks shiny and new) but never sorted out the reason why the original turbo blew.

I paid 2.5k for this car, now do i px it while i still can or repair it?

With all the faults, i can only guess that a dealer will be able to put it 100% right, and i think this will out price the value of the car.

wish i held onto my 406, now i don't have a reliable car to get to work in!
i'm gutted! !!