Carlston

Try new shock absorbers, such Bilstein B4. That should give the ride more composure. A set of four of these shock absorbers would cost about £250. I would avoid lowered suspension springs because it makes the ride harder. Plus you might want to fit Bilstein B8 shock absorbers to match the lowered/sports springs. This lot could cost about £750. So perhaps around three times the price of the first option.

It would be very useful to have the car's build codes. This will allow you to use the Skoda parts catalogue on 7zap to find the OEM part numbers for the parts that were originally fitted. You can get the car's build codes by going on the "skoda erwin" website. They do charge about 7 Euros for one hour's access, but that should be enough time to obtain all the build codes. https://erwin.skoda-auto.cz/erwin/showHome.do Another way is to use an Italian seller on ebay who can send you your build codes for about 3 Euros. Google "skoda VIN decoder" on ebay to find the listing. He has 100% positive feedback.

The Octavia MK3 312mm front brakes and 272mm rear brakes are both TRW brake systems. If you use TRW aftermarket brake pads for both these TRW brake systems, they should fit just like the originals. VAG don't manufacture brake parts. They buy them from places like ATE and TRW depending on what brake system is being used on that particular car. You can often get different front and rear brake systems on the same car. For example, you might get an ATE front brake system and a TRW rear brake system, or vice-versa. As far as the rattling goes, why not compare the new brake pads with the old ones that you have just taken off before fitting the new ones. If the new ones are loose enough to rattle, I would have thought that it would be easy enough to spot the difference in size before fitting them. Maybe use the help of digital calipers, or put them back to back and look around the edges for any dimensional differences.

I said, "The OP has front brake discs that aren't worn out". The OP has quoted the mileage as 9,756 miles from new, and the garage has described them as glazed (eg. new and shiny looking), with no mention that they are worn out. Considering that you work in the industry, it is to your credit that you accept that, "Fraud in the industry is rife".

The OP has front brake discs that aren't worn out. The mechanic appears to be attempting fraud by falsely claiming that urgent work needs doing. Yet you appear to be doing everything you can to avoid addressing the real issue. Do you work in the industry, and have you got a financial interest in this upselling fraud that sadly appears to be quite widespread in the UK?

When OEM rims go wider (with wider tyres) the offset usually increases. An increase in offset, pushes the centre of the tyre inwards, not outwards. This is to keep the tyres comfortably within the wheelarches, and not stick out which would be illegal. Here's some examples from the Superb MK3 OEM tyre and rim sizes: 215/55R17 7Jx17 ET40 235/45R18 8Jx18 ET44 235/40R19 8Jx19 ET44 Remember, the more the offset, the more the centre of the tyre is pushed into the wheelarch. Therefore ET44 pushes the centre of the tyre 4mm further into the wheelarch than ET40.

ATE, TRW, Bosch all make OEM quality brakes discs. I've been using the same MOT guy for the past 20 years. Not only is he very skilled at motor mechanics, but he's also very honest. He's fully capable of spotting dodgy brakes. Sorry to hear that your MOT guy isn't up to the same standard. Here's a link to some prices for the 312mm front brake discs on the Superb MK3. Sometimes it's even cheaper on ebay and/or amazon. Under £32 for Bosch, under £37 for TRW, under £45 for ATE. https://www.autodoc.co.uk/car-parts/oem/1k0615301aa?search=OEN+1K0615301AA&supplier[0]=833&supplier[1]=3&supplier[2]=30 A half seized brake caliper as you put it would fail the MOT test, as one side would be less effective than the other. The rolling road on the MOT, can measure if the left or right brake is working better than the other side. If there's a significant discrepancy, the car fails the MOT.

I had a new car that according to some dodgy fast fit tyre garage needed new front brake discs after 30,000 miles. After 100,000 miles it was still passing the MOT with those same front discs. Ignore all this nonsense unless it fails the MOT, or you can feel the brakes becoming less effective. It's a common old trick, as it's a very simple job that the garage makes a lot of money out of. For the Superb MK3, you can get OEM quality front brake discs for under £32 each, and OEM quality front brake pads for under £32. So that's under £96 for all the parts. About 30mins labour, so maybe £36 for that. Total cost £132 including VAT. If you want peace of mind, put the car through an MOT at a trustworty garage. There the car will get it's brakes tested on a rolling road. However, I wouldn't bother as you would notice when you use the brakes if there was a problem with their functionality.

Kilen 25117 and Lesjofors 4095131 are sold to replace both 5Q0411105CG (which is a VW Passat standard ride height front spring and very similar to 5Q0411105GM) and 5Q0411105GM. Kilen 25123 and Lesjofors 4095137 are sold to replace 5Q0411105GN. 2016 VW Passat standard ride height 5Q0411105CG 1 5Q0 411 105 CG coil spring 1 paint mark 1 paint mark 1 paint mark yellow violet brown 2 PR-G01+L33 Superb MK3 2.0TDI 150HP standard ride height 5Q0411105GM (1) 5Q0 411 105 GM coil spring 1 paint mark 1 paint mark blue grey 2 PR-G01+L07 Superb MK3 2.0TDI 150HP standard ride height 5Q0411105GN 1 5Q0 411 105 CG coil spring 1 paint mark 1 paint mark green white 2 PR-G01+L08 I suggest you fit Kilen 25123 or Lesjofors 4095137 front springs that match 5Q0411105GN, and Kilen 65126 or Lesjorfors 4295136 rear springs that match 3Q0511115M. This should give you a firm, sporty ride to match your 19" wheels, yet still have a better ride than the increased ride height springs. If you compare the weight of the standard ride height springs and the increased ride height springs, you might be surprised just how much heavier the increased ride height springs are. This is due to the bigger wire diameter on the increased ride height springs. Kilen 25123 or Lesjorfors 4295136 front springs to match 5Q0411105GN https://www.ebay.co.uk/itm/393381818281?epid=251877720&hash=item5b97622fa9:g:kioAAOSwBYRiMcnq Kilen 65126 or Lesjofors 4295136 rear springs to match 3Q0511115M https://www.ebay.co.uk/itm/353522211089?epid=251908476&hash=item524f90d911:g:uQgAAOSw~IFiMdIr Kilen and Lesjofors are the same springs made in the same factory in Sweden. They are just sold under different brand names to increase their market share. As you are changing your front springs from increased ride height to standard ride height, you will need to also change the front rubber buffers that are fitted to the front shock absorbers. Currently you will have 90mm rubber buffers fitted which are for the increased ride height. You need to change to the 70mm rubber buffers to match the standard ride height. These have OEM part number 1K0412303B. 3 1K0 412 303 B rubber stop for shock absorber 70 2 PR-G01 (3) 1K0 412 303 F rubber stop for shock absorber 55 2 PR-G02 (3) 1K0 412 303 AA rubber stop for shock absorber 90 2 PR-G03 70mm standard ride height rubber buffer for front shock absorbers 1K0412303B

Many of the aftermarket coil spring catalogues suggest 3Q0511115AK for the Superb MK3 2.0TDI, but this includes both the hatchback and combi, with or without factory fitted towbar. 3Q0511115AK is quite a light spring, and is only weight range 3. You might want to use a slightly stiffer and/or longer rear spring such as 3Q0511115AL or 3Q0511115M which are weight range 4 and 5 rear springs, as shown in the chart below. 0YC is weight range 3, 0YD is weight range 4, and 0YE is weight range 5. I suggest you choose depending on how much weight you usually carry in the back of the car. What works well with a heavily loaded car, can cause an unnecessarily hard ride if you rarely carry much weight. Superb MK3 rear springs with standard ride height 1JA (weight range 3 to weight range 5) 1 3Q0 511 115 AK coil spring 2 PR-1JA+0YC 1 3Q0 511 115 AL coil spring 2 PR-1JA+0YD 1 3Q0 511 115 M coil spring 2 PR-1JA+0YE Superb MK3 rear spring with increased ride height UC7 (weight range 5) 1 3Q0 511 115 AR coil spring 2 PR-UC7+0YE 3Q0511115AK (standard ride height weight range 3 rear spring) https://www.autodoc.co.uk/car-parts/oem/3q0511115ak https://www.ebay.co.uk/itm/353522210862?epid=251901134&hash=item524f90d82e:g:lp4AAOSwMS9iMbES 3Q0511115AL (standard ride height weight range 4 rear spring) https://www.autodoc.co.uk/car-parts/oem/3q0511115al https://www.ebay.co.uk/itm/274821903792?epid=251938957&hash=item3ffca975b0:g:nFMAAOSw3gxiMcPF 3Q0511115M (standard ride heigth weight range 5 rear spring) https://www.autodoc.co.uk/car-parts/oem/3q0511115m https://www.ebay.co.uk/itm/353522211089?epid=251908476&hash=item524f90d911:g:uQgAAOSw~IFiMdIr

What coloured dots do the front and rear springs have? By looking at a chart, this will tell you what springs you have fitted. Is your Superb MK3 2.0TDI 150HP a hatchback or estate/combi ? Does your Superb MK3 2.0TDI 150HP have a DSG/automatic or manual gearbox ? Do you have electronically adjustable shock absorbers ? DSG gearbox will mean stiffer and/or longer front springs. Estate/combi will mean stiffer and/or longer rear springs.

It's not just that TRW GDB1984 doesn't have a sensor, but TRW GDB1984 brake pads are far too small...as you can see from the specifications below. TRW GDB1984 Height 54.7mm, Width 146mm, Thickness 19.5mm https://www.autodoc.co.uk/trw/7281541?search=TRW Brake pad set (GDB1984) TRW GDB1956 Height 64.5mm, Width 160.2mm, Thickness 20.4mm https://www.autodoc.co.uk/trw/7489103?search=TRW Brake pad set (GDB1956)

TRW GDB1956 are the correct front brake pads for the 312mm front brake discs, not TRW GDB1984.

I didn't know you could get an Octavia MK3 RS with four wheel drive. All the ones I've seen listed are two wheel drive. What engine does it have, and is it the facelift model? If it's the 2.0litre petrol 245PS, it will probably have the following brakes. Build code 1LG means 340mm front brakes, and build code 1KW means 310mm rear brakes. If your rear brake discs are ventilated, they will be the 310mm rear brakes as all the other rear brakes use solid rear brake discs. 340mm front brakes 1LG https://www.lllparts.co.uk/en/catalogs/skoda/CZ/OCT/805/6/615/615040 310mm rear brakes 1KW https://www.lllparts.co.uk/en/catalogs/skoda/CZ/OCT/805/6/615/615065

Was the alternator of good quality? If the alternator was reconditioned it may have been bodged, such as using course sandpaper to clean the armature and stretching the springs for the carbon brushes by hand. This would result in the carbon brushes being pushed too hard onto a rough armature, resulting in the carbon brushes wearing out very quickly. What is the voltage with the engine running, as measured directly on the battery terminals? Even an old battery that needs replacing, should read about 14.0V if the alternator is working properly.

Outside diameter 215/65R17 711.3mm 235/55R17 690.3mm 215/55R17 668.3mm Therefore, 215/65R17 has an outside diameter 6.4% bigger than 215/55R17, and 3.0% bigger than the oversize 235/55R17. I'm not surprised they rubbed. 215/65R17 is a Kodiaq sized tyre.

I would go for new wishbones with new bushes already fitted. Old steel wishbones can eventually rust through, and a garage might not fit the new bushes correctly as it's a skilled job and the bushes need to be fitted in the correct orientation or they will fail prematurely. Going for new wishbones should save some labour, so it might not cost any more. I've linked to Lemforder wishbones, but there's a huge choice of brands...most are probably just rebrands rather than the brands actually making the items themselves. 2016 Fabia MK3 front suspension Front left wishbone 6R0407151F 1 6R0 407 151 F track control arm, complete left 1 https://www.autodoc.co.uk/lemforder/7643713 Front right wishbone 6R0407152F (1) 6R0 407 152 F track control arm, complete right 1 https://www.autodoc.co.uk/lemforder/7643714 https://skoda.7zap.com/en/cz/fabia/fab/2016-797/4/407-407000/#1

The Yeti and Superb MK3 use similar outside diameter tyres, eg. 215/60R16 is a size shared between both cars. Therefore, if 235/55R17 fits the Yeti without rubbing it would suggest that it would also fit the Superb MK3 without rubbing. Clearly, first hand experience with the Superb MK3 would be preferable. However, in Europe there's little interest in fitting oversize off-road capable tyres to the Superb MK3.

Outside diameter 235/40R19 670.6mm 235/55R17 690.3mm Therefore, 235/55R17 has a 2.9% bigger outside diameter than 235/40R19. Someone has already changed their Yeti from 225/50R17 to 235/55R17 on the standard Yeti 7Jx17 ET45 rims. Top photo 225/50R17 Bottom photo 235/55R17

Try searching 7N0698647A without the spaces. autoodoc are showing four different aftermarket brands. Febest, Topran, Frenkit, Vika https://www.autodoc.co.uk/car-parts/oem/7n0698647a?search=OEN 7N0698647A However, it might be cheaper to order a genuine OEM kit from a local VW/Skoda dealer due to shipping charges from autodoc. 7N0698647A 7 7N0 698 647 A 1 set protective sleeves for guide pins 2 https://skoda.7zap.com/en/cz/octavia/oct/2016-753/6/615-615025/#7

The rubber bushes play a big part in absorbing road shocks. You can see from the below two photos that the standard rear rubber bushes are not solid. Pressed steel suspension arms can rust through and break after about 15 years, so it might be worth fitting new suspension arms that already have new front and rear bushes correctly fitted. Left suspension arm Right suspension arm Skoda 7zap https://skoda.7zap.com/en/cz/octavia/oct/2016-753/4/407-407005/ Left suspension arm https://www.autodoc.co.uk/car-parts/oem/5q0407151l?search=OEN+5Q0407151L Right suspension arm https://www.autodoc.co.uk/car-parts/oem/5q0407152l?search=OEN+5Q0407152L

On the petrol VRS, the 340mm front discs are matched to 310mm ventilated rear discs. As standard, the diesel VRS uses 272mm solid rear discs.

On the Bosch C1 battery charger, there's an LED light that comes on when the battery is fully charged. So it doesn't stay on.

Sachs 900202 is for standard suspension, so will be suitable for your standard ride height car. The two stop buffers in the kit should have a height of 133mm. 2 3C0 511 359 stop buffer 133MM 2 https://skoda.7zap.com/en/cz/superb/sup/2016-768/5/511-511000/ Sachs 900203 is for sports/lowered suspension, so won't be suitable for your standard ride height car. The two stop buffers in the kit should have a height of 118mm. 2 3C0 511 359 B stop buffer 118MM 2 https://skoda.7zap.com/en/cz/superb/sup/2016-768/5/511-511010/#2

The Octavia MK2 VRS uses 312mm diameter front brake discs. Therefore 16" rims will clear the front brake calipers. One option is to use a 205/55R16 tyre fitted to a 6.5Jx16 ET50 steel rim as a spare. https://www.skoda-parts.com/spare-part/1k0601027k03c-steel-wheel-disc-6503.html Another option is to use a 205/55R16 tyre fitted to a 6Jx16 ET50 steel rim as a spare. https://www.skoda-parts.com/spare-part/8p060102703c-steel-wheel-disc-21215.html The narrower 6J rim is generally used for winter tyres, where you can also use them with snow chains. However, both the 6J rim or 6.5J rim could also be used for a spare.