Big Wigg

Good evening fellow Jag owners. My S Type diesel auto has what can best be described as a gentle shudder from the gearbox. It happens from about 1500 rpm up to about 2500 rpm. It feels like I’m driving over ripples in the road! The oil level is correct. It had an oil and filter change before I got it. Although I have very little experience with this car (not had it long) the gear changes seem to be very smooth, and I think everything else in the gearbox works as it should. Any ideas please? Bonne soirée 🙂

UPDATE. Well, it turns out that this is indeed a shroud that holds the catalytic converter in place and it’s common for the metal band that clamps around the catalytic converter to rust and break if it’s disturbed. In my case, we’re fitting the cat/manifold conversion kit to stop the ingress of exhaust fumes into the cabin, so it had to be demounted/disturbed revealing its corrosion and weakness. The part is not available separately and only comes with the catalytic converter, so fabrication and welding is the order of the day. I hope this helps someone else.

Hello fellow Jag owners. Jaguar S-Type 200 Diesel Saloon 2.7 D V6 2720cc AJD VIN SAJAC031177 N74478 I live in central France and my local garage is doing the ‘cracked/leaking exhaust repair/conversion and they’ve told me I need to replace the part in the pictures below. The description I got was … ‘An exhaust collar/ catalyst flange’ but have been unable to find it on of the parts catalogues I know of. Can anyone identify this part with a part number please? It looks like a catalytic converter shroud of some kind! Any help greatly received. Thank you in advance. Kind regards Cameron

Good day to you all and thank you Peter. A quick update on the exhaust gasses entering the cabin issue. This is a ‘well known’ problem … well, it is if you know about it! I researched it thoroughly and found that it’s common for a small crack to appear just after the three-bolt flange and decoupler assembly and before the catalyst. Mine was just after the crushed wire part in the attached pictures. I believe Jaguar were the first to make the repair kit to avoid customers having to replace the catalytic converters in their entirety which is very expensive! The kit is now widely available from various suppliers but make sure you get the kit that has the crushed wire part because, as I understand it, it helps stop the transmission of noise and vibration down the pipes. I bought a quality repair kit from Berkshire Jag Components, and they were great to deal with. It’s a complete kit which includes everything you need, and it’s being fitted now. Link below. Jaguar S Type Catalytic Converter Diesel Repair Kit R.H - Berkshire Jag Components I hope this is clear and helps someone out there. 🙂 Now a question. Jaguar S-Type 200 Diesel Saloon 2.7 D V6 2720cc AJD. VIN SAJAC031177 N74478 I live in central France and my local garage is doing the ‘cracked/leaking exhaust repair/conversion and they’ve told me I need to replace the part in the pictures. The description I got was … ‘An exhaust collar/ catalyst flange’ but have been unable to find it on of the parts catalogues I know of. Can anyone identify this part with a part number please? I’m going to do a separate forum post for this too. Thank you in advance.

Hello everyone. I am about to 'inherit' an S Type diesel and believe it has the same issue of fumes in the cabin. I joined this forum to get more information on the subject and my extensive research suggests that this is quite a common issue and is caused by a leak after the manifold and in the catalyst area. It appears that there are two different types of exhaust pipe repair, one with a bend and one with a straight piece of pipe and they’re LHS and RHS. If you have this problem, it appears that it can be solved by buying a repair kit, cutting off the leaking piece of pipe before the catalyst and fitting the specially modified part. Here is a picture of the kit and a link to one of many suppliers of this repair kit … If the catalyst itself is cracked/leaking, that’s a different repair! https://www.ebay.co.uk/itm/182732981641?_trkparms=amclksrc%3DITM%26aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D236211%26meid%3D2069b4efb4244b6ebbee8c9a74eeadb6%26pid%3D101196%26rk%3D1%26rkt%3D3%26sd%3D182437153885%26itm%3D182732981641%26pmt%3D1%26noa%3D0%26pg%3D2047675%26algv%3DSimplAMLv5PairwiseWebWithBBEV2bAndUBSourceDemotionWithUltimatelyBoughtOfCoviewV1&_trksid=p2047675.c101196.m2219&amdata=cksum%3A1827329816412069b4efb4244b6ebbee8c9a74eeadb6|enc%3AAQAGAAACMMkYlpMY1kUwPn5YyaeW72sU2ahbDFb4QW7iqKbDIo3CgSSe0je8gfF1LvytityLzR9pFVFRmMiKHBov8oNPWDYf1NF%2BAVMjIKIKW1h%2F7u4iBDMq9s2FUx%2Fp7Py%2BslYVUfBdyqXcsaAMNb3%2FCd0gPY1KLKHNSiK8rYiHei6MgRtxS8CjsU09nNgKe8Zz8GBJpfEB54kxXK75FkeagaJRD%2Fbnv3B0fmMEIoG0PpBKop6K4z9UPdBR8FAQ2pjkMxeU5eNxdgzE3jz4HytU7lsV70VhaD%2BuQETIb43qHPs2sLfxkQoxlzxWykOB7clg0FsJkts%2Bx%2FyG8aAOyg2hBytcnsXufWMHz85jx3zwmPY3%2FAChTlA7gtoom6Q59sO%2FeoaW%2B9qKiCAE0QvQgdgmOuNnm3WFoUd7c%2BVpJfzNy2%2BxwlInpSevAciZf7cJFnLIJ77%2F4SPXFgSUQ%2BWRYisWWNakomCtgHYrSI62Q0wgfhZlk42TwrUSZ4aHK8YkIlSkgOLrWd0i4GnYhCgmWdjx2BP%2Bw2trKkOSWuqbuojv%2B5S%2Bw1GMe7R27QRKZweAJq4Udl2arxSWZ3DdLCx1FCPrWyrZuTOnec0tuimotDFqEglLFRFkzfe1pEe1jF50IaU0KZLouKEDhDXKCAr7bMh8ajLxpfjwinFXJ133i3OsWJofZmeyXtrIpakEPAASGvbtIhV3qwW7PH%2FW6T%2BVX4mSYMFzkh%2Ba96M56Z18v7w0fOywlnF2|ampid%3APL_CLK|clp%3A2047675 Here is another picture of the same repair from eBay.

Hello everyone. I am about to 'inherit' an S Type diesel and believe it has the same issue of fumes in the cabin. I joined this forum to get more information on the subject and my extensive research suggests that this is quite a common issue and is caused by a leak after the manifold and in the catalyst area. It appears that there are two different types of exhaust pipe repair, one with a bend and one with a straight piece of pipe and they’re LHS and RHS. If you have this problem, it appears that it can be solved by buying a repair kit, cutting off the leaking piece of pipe before the catalyst and fitting the specially modified part. Here is a picture of the kit and a link to one of many suppliers of this repair kit … If the catalyst itself is cracked/leaking, that’s a different repair! https://www.ebay.co.uk/itm/182732981641?_trkparms=amclksrc%3DITM%26aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D236211%26meid%3D2069b4efb4244b6ebbee8c9a74eeadb6%26pid%3D101196%26rk%3D1%26rkt%3D3%26sd%3D182437153885%26itm%3D182732981641%26pmt%3D1%26noa%3D0%26pg%3D2047675%26algv%3DSimplAMLv5PairwiseWebWithBBEV2bAndUBSourceDemotionWithUltimatelyBoughtOfCoviewV1&_trksid=p2047675.c101196.m2219&amdata=cksum%3A1827329816412069b4efb4244b6ebbee8c9a74eeadb6%7Cenc%3AAQAGAAACMMkYlpMY1kUwPn5YyaeW72sU2ahbDFb4QW7iqKbDIo3CgSSe0je8gfF1LvytityLzR9pFVFRmMiKHBov8oNPWDYf1NF%252BAVMjIKIKW1h%252F7u4iBDMq9s2FUx%252Fp7Py%252BslYVUfBdyqXcsaAMNb3%252FCd0gPY1KLKHNSiK8rYiHei6MgRtxS8CjsU09nNgKe8Zz8GBJpfEB54kxXK75FkeagaJRD%252Fbnv3B0fmMEIoG0PpBKop6K4z9UPdBR8FAQ2pjkMxeU5eNxdgzE3jz4HytU7lsV70VhaD%252BuQETIb43qHPs2sLfxkQoxlzxWykOB7clg0FsJkts%252Bx%252FyG8aAOyg2hBytcnsXufWMHz85jx3zwmPY3%252FAChTlA7gtoom6Q59sO%252FeoaW%252B9qKiCAE0QvQgdgmOuNnm3WFoUd7c%252BVpJfzNy2%252BxwlInpSevAciZf7cJFnLIJ77%252F4SPXFgSUQ%252BWRYisWWNakomCtgHYrSI62Q0wgfhZlk42TwrUSZ4aHK8YkIlSkgOLrWd0i4GnYhCgmWdjx2BP%252Bw2trKkOSWuqbuojv%252B5S%252Bw1GMe7R27QRKZweAJq4Udl2arxSWZ3DdLCx1FCPrWyrZuTOnec0tuimotDFqEglLFRFkzfe1pEe1jF50IaU0KZLouKEDhDXKCAr7bMh8ajLxpfjwinFXJ133i3OsWJofZmeyXtrIpakEPAASGvbtIhV3qwW7PH%252FW6T%252BVX4mSYMFzkh%252Ba96M56Z18v7w0fOywlnF2%7Campid%3APL_CLK%7Cclp%3A2047675