Carlston

Stop guessing and send Pete your VIN. You may have noticed if you've ever purchased parts from a Skoda parts department, that the first thing they ask for is your VIN. This is because with the correct VAG computer system, the VIN brings up a list of all the parts that were fitted to your car as it went along the production line.

GSF is listing 280x22mm, 288x25mm, and 312x30mm front brake discs for the Yeti 150HP 4x4, not just 280x22mm. This means that GSF doesn't know what front brakes are fitted to your car. If you send Pete your VIN, he will be able to tell you for sure what front brakes you have.

The Yeti 150HP uses 288x25mm front brake discs, not 280x22mm. EBC brakes lists 288x25mm front brake discs for the Yeti 150HP 4x4 https://www.autodoc.co.uk/car-parts/brake-disc-10132/skoda/yeti/yeti-5l/115192-2-0-tdi-4x4?supplier[0]=6368&criteria[100][1]=VA Even the Yeti 140HP uses the 288x25mm front brake discs, and not the smallest 280x22mm. However, to be sure it's always best to check the car's build codes.

As you can see in the chart below, build code 1ZE (288x25mm) and build code 1ZA (312x25mm) both use the same front brake calipers, ie. 1K0615123E and 1K0615124E. TEVES is the same as ATE. front brakes TEVES/ATE 288x25mm 15" PR-1ZE 1 1K0615123E brake caliper housing left 1 (1) 1K0615124E brake caliper housing right 1 https://skoda.7zap.com/en/cz/yeti/yet/2010-666/6/615-615025/ front brakes TEVES/ATE 312x25mm 16" PR-1ZA 1 1K0615123E brake caliper housing left 1 (1) 1K0615124E brake caliper housing right 1 https://skoda.7zap.com/en/cz/yeti/yet/2010-666/6/615-615030/ Left front brake caliper 1K0615123E (autodoc shows that this OEM part number is part of an ATE brake system) https://www.autodoc.co.uk/car-parts/oem/1k0615123e?search=OEN 1K0615123E&supplier[0]=3 Right front brake caliper 1K0615124E (autodoc shows that this OEM part number is part of an ATE brake system) https://www.autodoc.co.uk/car-parts/oem/1k0615123e?search=OEN 1K0615123E&supplier[0]=3 Even the front brake pads are the same for the 288x25mm and 312x25mm front brake discs. Different OEM part numbers, but these OEM part numbers link to the same brake pads. Front brake pads for 288x25mm front brake discs 5K0698151 (ATE 13.0460-7184.2) https://www.autodoc.co.uk/car-parts/oem/5k0698151?search=OEN 5K0698151&supplier[0]=3 Front brake pads for 312x25mm front brake discs 3C0698151C (ATE 13.0460-7184.2) https://www.autodoc.co.uk/car-parts/oem/3c0698151c?search=OEN 3C0698151C&supplier[0]=3

Someone's post on the "yetiownersclub" has a lot of mistakes, incorrectly claiming that most of the front brakes on the Yeti are Bosch. They aren't, because they are all ATE.

The Yeti 170HP uses bigger front brake discs than the Yeti 150HP, so the front brake carriers need to position the front brake calipers further from the centre of the axle. On the Yeti, the front brake calipers are ATE and the rear brake calipers are either TRW or Bosch. So Bosch front brake calipers aren't used.

The Skoda parts catalogue shows that the front brake calipers on the 288x25mm and 312x25mm are all the same, whether the early 2010 Yetis or the late 2018 Yetis. The 288x25mm front brakes have build code 1ZE and the 312x25mm front brakes have build code 1ZA. If different front brake calipers appeared on the 150HP Yeti, a different build code would have been used...and that's not the case. Maybe you are confusing the front brake calipers used on the 280x22mm front brake discs, which do use different brake calipers.

The 288x25mm and 312x25mm front brakes on the Yeti use the same brake calipers. So to convert from 288x25mm to 312x25mm just requires changing the front brake caliper carriers and the front brake discs. ATE front brake carrier for 312x25mm front brake discs 5N0615125 312x25mm front brake disc 1K0615301AA

2mm difference in the outside diameter is not significant, and the dimensions that are given should just be seen as an estimate. For rear shock absorbers I would probably go for something like Bilstein B6 24-267137 https://www.autodoc.co.uk/bilstein/9350571?search=BILSTEIN Shock Absorber (24-267137) Bilstein B6 24-267137 rear shock absorbers come up on autodoc when you search for cars such as the VW Golf MK7 Alltrack. The Octavia MK3 and Golf MK7 share the same MQB platform. Bilstein B6 shock absorbers are often monotube, which is a superior and more expensive design that the far more common and cheaper twintube design. Sometimes Bilstein B6 shock absorbers are twintube, but where that is the case, there won't be so much advantage in using them over the cheaper Bilstein B4 shock absorbers. Bear in mind, that even the cheaper Bilstein B4 shock absorbers are gas filled and are as good or better than the OEM Skoda shock absorbers. It might be interesting if you just change the rear springs and shock absorbers first. Then you can assess the improvement of just doing the rear before doing the front. The rear shock absorbers are cheaper than the front shock absorbers and there's much less labour involved in doing the rears. Upper underlay for rear spring 5Q0512149A Audi TT upper underlay for rear spring 5Q0512149B (not available on autodoc) (looks similar to 5Q0512149A) Lower underlay for rear spring 5Q0512297D Stop buffer 127mm for rear shock absorbers 5Q0511357H Protective pipe for rear shock absorber 5Q0513425J

Sachs 992103 matches 5Q0511115AN. However, 1K0511115CT from the Octavia MK2 Scout appears to be identical to 5Q0511115AN but is often less than half the price. If you look on autodoc, you can see that Kilen/Lesjofors are selling the same rear spring to replace both 1K0511115CS and 5Q0511115AM. Hence, the Octavia MK2 Scout and Octavia MK3 Scout having the same rear springs...just using different OEM part numbers for the same spring. Bilstein 36-199570 (matches 1K0511115CT so should be identical to 5Q0511115AN) https://www.ebay.co.uk/itm/334134786357 Eibach R10494 (matches 1K0511115CT so should be identical to 5Q0511115AN) https://www.autodoc.co.uk/eibach/13828886 You have three choices of rear Scout springs. They will all give you about the same unladen ride height. The difference is in the compression rate. The 13.00mm version is about 8% stiffer than the 12.50mm version, and the 12.75mm version is about 4% stiffer than the 12.50mm version. Wire Diameter 12.50mm, Weight 2.45kg 1K0511115CR (from Octavia MK2 Scout) 5Q0511115AL (from Octavia MK3 Scout) These two springs appear identical and interchangeable. The MK2 springs are sometime cheaper than the MK3 springs. Wire Diameter 12.75mm, Weight 2.6kg 1K0511115CS (from Octavia MK2 Scout) 5Q0511115AM (from Octavia MK3 Scout) These two springs appear identical and interchangeable. The MK2 springs are sometimes cheaper than the MK3 springs. Wire Diameter 13.00mm, Weight 2.75kg 1K0511115CT (from Octavia MK2 Scout) 5Q0511115AN (from Octavia MK3 Scout) These two springs appear identical and interchangeable. The MK2 springs are sometimes cheaper than the MK3 springs. Octavia MK2 4x4 Scout Rear Springs (1) 1K0 511 115 CR coil spring 1 paint mark 2 paint marks red green 2 PR-1JB+0YK (1) 1K0 511 115 CS coil spring 1 paint mark 3 paint marks red green 2 PR-1JB+0YL (1) 1K0 511 115 CT coil spring 1 paint mark 1 paint mark rear red brown 2 PR-1JB+0YM https://skoda.7zap.com/en/cz/octavia/oct/2012-663/5/511-511012/ Octavia MK3 4x4 Scout Rear Springs 1 5Q0 511 115 AL coil spring 2 PR-1JB+0YC (1) 5Q0 511 115 AM coil spring 2 PR-1JB,0YD (1) 5Q0 511 115 AN coil spring 2 PR-1JB+0YE https://skoda.7zap.com/en/cz/octavia/oct/2016-753/5/511-511010/

When you've taken a small amount of metal off, perhaps you could retry to see if the M8 XZN tool will go in.

From other threads on the subject, I gather that the 5 year rule only applied to the UK. On the continent, they always went much longer.

The Monroe 376195SP and Sachs 318202 are sold to replace some of the same OEM part numbers such as 5Q0513029FB and 5Q0513029JT from the Octavia MK3 with standard ride height, front wheel drive, and independent rear suspension, so they must be quite similar.

If you need a spare XZN M8 so that you can use very gentle taps with a copper headed hammer, something like this might help. The tool is likely to be damaged in the process, and it's not guaranteed to work. However, I would try a high quality countersink tool first that's made for countersinking metal. Perhaps take a close-up photo of the bolt head first like Pete sugggested, so that we can see exactly what the problem is. XZN M8 x 75mm bit (£3.11 including shipping) https://www.ebay.co.uk/itm/325759278794

Looking on autodoc, it appears that only the most powerful Yeti with 170HP used the biggest 312x25mm front brake discs. All of the lower powered models used either 280x22mm or 288x25mm front brake discs. However, it always best to check your build codes to be sure what brakes were fitted in the factory. Front brakes for Yeti 1ZF 280x22mm (ATE brake system) 1ZE 288x25mm (ATE brake system) 1ZA 312x25mm (ATE brake system)

Maybe there is a tiny burr on the M8 splined bolt head. Maybe you could use a big HSS drill bit, perhaps 10mm to 12mm in diameter. These bolts are made out of 12.9 tensile strength steel, so it will quickly take the edge off the drill bit. Try removing the smallest amount of material that you can. You are only trying to enable the M8 XZN bit to be inserted. It might be better and easier to try modifying a M8 XZN bit, by giving it an ever so slight taper.

What size is the XZN? M8 or M10? It's an M8 bolt, so I expect it is XZN M8. Is the length of the bolt 48mm? (measured from under the head)

Varta thinks this one is correct. Varta do a cheaper Blue version, but it's only about 10% cheaper. However, the Silver one works much better. Varta Silver Dynamic 563400061 Capacity: 63Ah CCA: 610A Width: 175mm Length: 242mm Height: 190mm Short Code: D15 UK Code: 027 https://www.varta-automotive.com/en-gb/products/varta-silver-dynamic/563-400-061

Have you got 225/40R19 tyres? These are prone to pothole damage due to the very low sidewalls. You could swap the wheels front to back to rule out that it's not them causing the wobble/vibration. It's a TRW front brake system, so I would go with TRW front brake pads. ATE brake discs are slightly better quality than TRW because they are coated rather than painted so more resistant to corrosion. Parts and labour shouldn't come to much more than £200. My mechanic would probably charge about 45 minutes labour for the job. If you get them from autodoc, Monday is usually their biggest discount day at about 36% discount, with weekends offering the least discount. But it varies every day of the week. TRW GDB1956 front brake pads 5Q0698151F https://www.autodoc.co.uk/car-parts/oem/5q0698151f?search=OEN 5Q0698151F&supplier[0]=833 ATE 24012501581 312x25mm front brake discs 5Q0615301F https://www.autodoc.co.uk/ate/957620 Skoda parts catalogue https://www.lllparts.co.uk/catalogs/skoda/CZ/KAR/834/6/615/615001

What size battery do you want? (Width x Height x Length) Size 2 175mm x 190mm x 242mm Size 3 175mm x 190mm x 278mm Varta D15 563400061 (Size 2 battery) (Not stop/start battery) https://www.ebay.co.uk/sch/i.html?_dkr=1&iconV2Request=true&_blrs=recall_filtering&_ssn=tayna-batteries&store_name=taynabatteries&_oac=1&_nkw=varta+d15&_sop=15&rt=nc&Brand=VARTA&_dcat=179846 https://www.varta-automotive.com/en-gb/products/varta-silver-dynamic/563-400-061 As well as the physical size, ie. width x height x length, also check the orientation of the battery terminals. For example, the terminals on the following battery are reversed

It's looks like the bolts that the OP wants to undo have a tensile strength of 12.9 which is far stronger than the 8.8 tensile strength that wheel bolts are often made out of. The 12.9 tensile strength should help to prevent the bolt head shearing if its very tight, but yes, full engagement can prevent a lot of unnecessary problems.

They may exist, but spline is normally used interchangeably with XZN. I doubt you will find 4 triangles on VAG cars. There's also "Ribe" but that's very different to XZN/spline, and I doubt Ribe is used on VAG cars...maybe some Italian cars. Ribe

The terms XZN, spline, and triple square are all used interchangeably. I've never seen 4 triangles with 60 degree points, on either XZN or spline tools. Here's one example of a 40 piece set that comes with ten spline tools with both long and short versions of M5, M6, M8, M10, M12. The spline tools in these sets are triple square, not 4 triangles as I've checked the largest M12 size using a magnifying glass. "40 piece torx spline hex bit set" https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw=40+piece+torx+spline+bit+set&_sacat=0&LH_TitleDesc=0&_odkw=40+piece+spline+torx+hex+set&_osacat=0&_sop=15 These are common Chinese made sets rebranded under many different names. Even "Draper Expert" and "Britool Hallmark" rebrand them, but I doubt the quality of these is any different from the cheapest £10 versions.

Bosch car batteries are made by Varta. Varta are listing this AGM battery for the Octavia MK2 1.6TDI. An AGM battery is a stop-start battery. Varta Silver Dynamic AGM 570901076 https://www.varta-automotive.com/en-gb/products/varta-silver-dynamic-agm/570-901-076 https://www.amazon.fr/VARTA-SILVER-DYNAMIC-AGM-E39/dp/B00CEBBBCE/ref=sr_1_1?__mk_fr_FR=ÅMÅŽÕÑ&crid=1CBSNR50ERSH8&keywords=Varta+e39&qid=1691327783&refinements=p_n_free_shipping_eligible%3A20934939031&rnid=20934938031&sprefix=varta+e39%2Caps%2C177&sr=8-1

My preference would be the Vredestein Quatrac 6 as they can often last over 45,000 miles (depending on driving style), but if you are replacing just two tyres and already have four Hankook all-season tyres fitted then perhaps go for the Hankook's. One big benefit of using all-season tyres for low mileage users, is that unlike summer tyres they don't crack after just a few years. My current Vredestein Quatrac 3 all-season tyres still haven't cracked after 11 years, but my previous Michelin summer tyres cracked after only 5 years and had to be replaced even though they still had a lot of tread depth remaining. Hankook Kinergy 4S 2 H750 225/50R17 98V XL https://www.camskill.co.uk/m140b0s8019p164790/Hankook_Tyres_All_Season_Car_Hankook_Kinergy_4S_2_H750_225_50_R17_98V_XL_FR_TL_Fuel_Eff_%3A_C_Wet_Grip%3A_B_NoiseClass%3A_B_Noise%3A_72dB Vredestein Quatrac 6 225/50R17 98V XL https://www.camskill.co.uk/m140b0s8019p221178/Vredestein_Tyres_All_Season_Car_Vredestein_Quatrac_6_225_50_R17_98V_XL_TL_Fuel_Eff_%3A_C_Wet_Grip%3A_B_NoiseClass%3A_B_Noise%3A_71dB