The alternator on my wife's Skoda Fellatio has just failed as well so I'm shopping round to order a new one.
Having had just a cursory look under the bonnet it all looks pretty straight-forward. There's a thin wire going to a plug that is, at a guess, the charging indicator. There's a thick wire that comes off of a stud and which goes directly to the positive side of the battery. This is presumably the main feed from the alternator. No other wires. Nice and simple.
Oh, and just three nuts/bolts holding the alternator in position. Should be a half-hour job to change one.
If its a diesel with Power Steering you are in for a shock, you need to take out the radiator to give clearance, take off the belt tensioner pulley wheel to withdraw one of the two bolts, (not three). The pulley bolt is left hand thread and is lifted clear to slacken the belt for removal by getting a spanner on it and lifting. Not as easy as it sounds, it has a strong spring and is a bit fiddly, once the belt is off you can then turn the bolt the other way to remove it and the pulley wheel. removing the left hand headlight helps a lot as you can work through the hole that is left. best to find a scrap yard that still lets you take bits off and do it there first on someone else's car. Its not as bad as it sounds but is not the twenty minute job I thought it would be. Good luck, Steve
If its a petrol with power steering and an MPI engine then you are in for an even bigger shock as I have only just discovered. Removing this type of alternator requires a special tool. Without the special tool IT CANNOT BE REMOVED.
The procedure is to undo the nut which holds the belt retentioning roller to the engine mounting. Sure, both upper and lower bolts can be removed however, without releasing the tension from the belt the alternator can neither be moved nor removed.
The problem exists due to the positioning of the alternator and the belt retentioning roller - there is only 1/2-inch clearance between the bolt-end of the roller and the wheel-arch.
The tool is not available for public use. I have spoken to Skoda who have confirmed this. Even if you could buy the tool it would cost somewhere between £40 - £70 (confirmed by Ashley Down Motors, Bristol, UK).
If you could get the car over to a garage who has the tool then you might be able to persuade them to undo the belt retentioning roller nut so that you can fit the alternator yourself on the roadside - although, they might not be happy about this so phone them first. It may also mean offering a token payment of say £10 or so.
Hi, In case anyone is referring to this in the future I have just replaced the alternator on my 1.3 petrol 1999 Felicia Estate Pacific (V reg, 136M engine) as follows. 1. Disconnect battery and alternator electrical connections. 2. Remove the ignition coil unit -fixed by two allen keys on the underside) and rest it in the engine compartment. 3. Remove the bracket which the coil unit is attached to - from memory I think that I also had to remove two of the spark plugs. 4. Undo & remove the top & bottom bolts holding the alternator in situ. 5. Working underneath the car ( I did it with the a jack under the offside front cill jacking point, handbrake firmly on & a SECONDARY BEARER under the car) take a 15mm open ended spanner (I used a standard 15 x 13mm OE) and engage the centre nut on the tensioner pulley-this is located directly under the alternator pulley and can only be accessed from below due to lack of space between it and the inner bodywork. (it may be possible to access from above but would need a special tool). Turn the nut CLOCKWISE ( after reading another post I was trying to turn it the other way before I had an epiphany & it worked) to take tension off the belt whist an assistant working above manouvres it off the alternator pulley. Make sure that for the time being you keep the belt in situ around the other five pulleys/rollers or alternatively make a plan of it's route before removal. 6. The old alternator should then be able to be lifted out. 7. To refit, bolt the new unit in position & reconnect the two cables. From underneath, carefully take the belt off the power steering pulley ( the one at the bottom front of the engine directly below the tensioner). 8. Use the 'slack' created to locate the belt on the new alternator pulley above. 9. Working underneath the car again take tension off the belt as before but have a loop of wire (one insulated strand of some electrical T & E cable is ideal) over the unused (in my case 13mm) jaw of the spanner so that an assistant working above can keep the tension off by pulling. 10. This should allow the person below to let go of the spanner and ease the belt onto the bottom pulley-a blunt knife may help to lever it on. 11. Once you are satified that the belt is correctly located on all pulleys release the wire & the tensioner will resume it's position. 12. Refit spark plugs/coil bracket & coil pack, refit battery terminal , remove jack and support & test
Remove serpentine belt, remove three bolts ,an 2 wires. The alternator will pull up off the motor to remove. Put new alternator in replace bolts, replace wires, an replace the serpentine belt..
unbolt it, take the belt off, take the wires off the alternator and replace with new alternator.
disconnect the battery. Remove the alternator belt then disconnect the wires. Unbolt the alternator and remove. Bolt the new alternator in then connect the wires, belt, and battery.
3 bolts 2 wires
unhook the battery, remove the cerpintine belt, remove the wires, remove the bad alternator, put on the new alternator, replace the wires starting w/ the negative one, replace the cerpintine belt, tighten the belt.
Disconnect the battery. Loosen and remove the serpentine belt. Unscrew the bolts that hold the alternator in place and remove it. Disconnect the wires that still hold the alternator to the vehicle. Connect the new alternator to the wires and screw it back in place. Replace the serpentine belt.
on yours, you will have to remove the bottom shield and work from the bottom of truck.Remove wires from alternator,remove pivotalbolts and remove alternator and replace and tighten belt back.
Disconnect the battery negative. Loosen the belt and remove it from the alternator pulley. Disconnect all wires from the alternator. Unbolt the alternator from the bracket. Remove the alternator.
take the belt off the alternator and take out the 3 bolts that hold the alternator to the engine and unplug the wires that plug into it and you have it off.
Disconnect the battery, remove all wires from the alternator, slacken the belt tensioner, slip the belt off of the alternator pulley, unbolt the alternator, and remove the alternator. Installation is the opposite of removal.
Use a large wrench to take tension off of your serpentine belt and remove the belt from the alternator, (just the alternator). Disconnect the wires. Remove the bolts then the alternator. Put new alternator in place using old bolts. Replace wires (may only be one wire, depending on the alternator). Get your large wrench back out, put the belt back on the alternator, and your good to go.
Remove battery wires, then slacken serpentine belt, remove wires from back of alternator, then frame mounting bolts. Re fit in reverse order. Not a difficult job.