Heater blower

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spike1
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Hi All,
I have read about the notorious blower problems of the 460, mine has just shown itsself! after working  fine all day Saturday I turned the blower on on Sunday morning and nothing.
is it a complete strip out or and where would I gwt a new blower from?
As usual any help would be appreciated.      

fcp
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Re: Heater blower

 Complete strip is usually the solution. Full instructions here: http://www.clubgwagen.com/gtech.php?pageTitle=tech%20article&sid=item&tid=35

Takes about 4 hours from a standing start. 

I have a spare blower motor for sale which which is in good condition, pulled working from a complete unit I bought in the summer (£60 +P&P), or you can buy new from MB, part number A0008301308 @ £160+VAT. 

While the dash is out, take time to examine the heater core to make sure that's OK  (A0028356201 @ £130+ Vat - again I have a couple of s/h ones if needed).

Also worth replacing the resister board anyway A0008216860 @ £16+vat at the same time.

Good luck

spike1
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Re: Heater blower

 Hi, thanks for that il be interested in the parts please,

fcp
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Re: Heater blower

 Hi,

Sorry Spike1, but someone just got in yesterday on it :-( 

I still have one of the heater cores, but the blower is sold.

regards,

Ben

spike1
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Re: Heater blower

 Hi Ben, thanks for letting me know, at the risk of sounding stupid what does the heater core do?
I have taken a look at the link you sent me and there is no way I would even consider doing it, is there anyone in Northants area that would? Cheers Paul 

gav.helme
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Re: Heater blower

Hi Spike

A heater core or heater matrix is the small radiator within the heater box that supplies the heat to the cabin and is feed from the engine cooling system.

I can supply a suitable brand new motor for circa £97 + vat

PM me if you need one

Gav

spike1
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Re: Heater blower

 Hi Gav, I have sent you a pm can you let me know if it doesn't come through, cheers Paul 

gav.helme
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Re: Heater blower

Nothing my end fella, i will send you one, see if that comes through

Gav

spike1
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Re: Heater blower

Hi all,
Result! a blown fuse!!! £1.50 for a pack of ten, you would think that would be the first thing you would check!!!!

spike1
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Re: Heater blower

Ahrggg!
Forget my last post, went 200 yards and the blower stopped again!! 

IanA2
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Re: Heater blower

 I pm'd you too...let me know where you are in n'hants....can probably point you in an indie direction.

spike1
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Re: Heater blower

 Hi Ian, no pm,s came through, I'm close to Wellingborough, NN10OJB,thanks paul

IanA2
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Re: Heater blower

 Hi Spike, Just sent you another pm, copied it to myself and it came through, let me know if yours disappears into oblivion. I know of at least two  good indies in striking distance for you.

Ian

consur
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Re: Heater blower

I recall there was a thread about heater blower motors some time ago in which reference was made to a Polish mechanic who could change a motor in 1 to 2 hours working through the air intake. Presumably not a vehicle with air con as the block for this would be in the way.  Sounds incredible but apparently true.  Lives in Essex.  Use the search facility and you may be able to find it.

tony.bruegger
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Re: Heater blower

only use someone who has done it before...

ps: does not have to be a big strip out

    USE hot air gun....easy ish

derekfinn
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Re: Heater blower

Starting to put me off G's. I just spent all day on a 91 463 trying to get some life back into the blower motor with no success.

I can't take off the entire dash. That seems like a massive job that only a MB trained engineer could do.  

I have an astra heater fan that I read on the forum could be made fit into air intake. Anybody know how - it looks way too big. If I cut the plastic shroud off the astra fan - might squeeze in but not sure ?? 

If I climb on top of the engine, I can reach into the air intake box and feel a gunky amount of damp leaves and crud. Explains why I have a smell off old socks in the cockpit. Anyone know how to clean this out without driving the crud further into the system ? 

Where is the heater resistor located - surely this must be accessible from the engine bay !!! 

No heater blower is an MOT failure over here (I'm in Ireland) and I can't afford the 10 hour main dealer time + parts. I have to get a fix in place on this... 

Any suggestions would be great. 

Cheers 
D

spike1
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Re: Heater blower

 Hi Ian, still nothing on the pm! Cheers Paul 

fixwin38
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Re: Heater blower

HI All  
 460 series heater motor replacement>>>from the air intake duct
 We buy the replacement motor c/w fan direct from "Hella" the manufacturer
if you apply some heat to the dome of the fan blades you can remove the fan from the motor shaft ( practice on the new one )  do the same in the intake duct after feeling the location.
this allows you to get your hand in and remove the two clips holding the motor **** feel how they fit before unclipping ..the wires are very short so they must be removed down the hole ( only two)  reverse the procedure and heat the fan before sliding onto the shaft >>>>>>>>>>>..the only negative is if the speed control voltage dropper is corroded or burnt out you cannot access it from this location but it is easy to find and replace ( £30 ) from MB by removing the the lower centre console  ( more difficult if you have aircon>>>>>>>>>>>>>>>>>>>in future clean the drain in the bottom of the air intake box""" Every Year""" ..
Seasons Greetrings and a Happy New Year

IanA2
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Re: Heater blower

 You need to get on to admin about the lost pm's. I've sent three. Are you opening them by pressing "My Messages" under "My Account"? Anyway try H A Lock at Rushden. Ask for Paul, he has a G himself.

hth. Ian

spike1
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Re: Heater blower

 Hi fixwin, thanks for that, are you saying the dreaded strip out is not needed?!, if so do you have the part number I need? Thanks again Paul  

fixwin38
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Re: Heater blower

Hi Spike
the blower assembly from MB will cost you Around £170 inc vat and postage
I can supply to the Hella part number same item for £130 + postage but cannot order now.no until after the holidays .... you still need to check the condition of your speed control resistor...did you get all three speeds before the fuse blew..if so then a new  motor should solve the problem....

spike1
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Re: Heater blower

 Hi Fixwin, yes all three speeds worked ok, there was no sign of problems no screeching ect, it just stopped dead. Thanks Paul 

consur
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Re: Heater blower

Re crud in air intake. 
1.  I get the impression that on some 460's there is a metal plate under the central part of the plastic grill,  i.e. directly over the air intake but on other 460's (?earlier ones) this is not present.  The plate is there to prevent rainwater going straight down the intake. Fixwin will know the situation as to which vehicles have it.   I have a spare one from a 463 - as I don't have a 460 immediately to hand with which to compare it, I can't be 100% certain that it will fit your vehicle but you are welcome to have it for the cost of the postage if you PM me your address.  I attach a picture of it.  The central rectangular hole is for the windscreen washer nozzles.
2.  For the last 1,500 miles I have used a cut down airfilter from one of the current models positioned over the air intake on my 463 (300GEL).  This has dramatically improved the dust ingress to the cabin, and hopefully will extend the life of the blower motor bearings.  There has been no significant reduction in airflow and I can recommend this.  There was a thread on this topic earlier in the year, the main message from which was that the OEC one that is the correct size and intended for this purpose is excessively expensive and a cut down of something cheaper is an alternative.  Obviously this is only useable if there is the metal plate above it to stop it getting wet.

derekfinn
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Re: Heater blower

Crud in air intake - and my heater blower update. 463 300D

Making progress. I cleaned out the crud and have found and unblocked the drain at the bottom of the air intake. It can't have been blocked up too long as it appears solid with no sign of rust in the base. I can now reach the blower motor fan and its free to spin. I can spin the fan by hand. I have a replacement air intake plate that I got on ebay - but I appreciate your offer. (consur).

I have started to take the dash apart last weekend. I realized that I don't have a choice as this is definitely the only way to get to this particular fan motor and electrics. (463).

I now have all front dash section out. I have power from the blower motor controller but not at the fan motor. There is no power ouput from the resistor except for full speed. I'm waiting for delivery of a replacement resistor before i can progress.  Also, since I have the dash out, I've replaced all the dash & switch bulbs. What a huge difference the new bulbs make !!!.  Highly recommend if your taking out the dash. 

I'll take some photos next weekend as a pay back to help others with this particular and common G problem. 

Also, apologies to the original forum poster - as I've sort of joined in and added my own problem (although related) instead of a solution...

spike1
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Re: Heater blower

 Hi everyone and thanks for all your help once again, new blower arrived within a day! Had a good look at the instructions on the post and thought f### that, in to the garage she went I was quoted 8.1 hours of labour and a price of £400 plus vat. I picked her up today and the blower is working perfectly, thanks again to all involved on the post.