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Porsche Club GB

Knocking and Rattling From The Front

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Original source
21 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHKnocking and Rattling From The Front

Reported or suspected cause

coffin arms

Reported cause

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that report identifying a cause
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported cause

It was the coffin arms on mine, exactly the same symptoms.

Knocking and Rattling From The Front
Frequently discussed work

Disconnect lower joint

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

If you disconnect the lower joint on one side you can often feel if there is any play in the system.

Knocking and Rattling From The Front
Read full discussion summary

Leading evidence: 'coffin arms' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'coffin arms' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Disconnect lower joint' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 21 captured posts examined · 0 partial discussions

Compare 4 other evidence results

worn drop links

Reported cause

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that report identifying a cause
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported cause · Original poster

And that was caused by worn drop links.

Knocking and Rattling From The Front

easter will be a little dirty

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that suspect a cause
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suspected cause

So thats the front sorted, just need to find the time and slot it all in - suspect easter will be a little dirty!!

Knocking and Rattling From The Front

lsd and not

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that suspect a cause
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suspected cause · Original poster

I always assumed this was caused by the LSD and not to worry about.

Knocking and Rattling From The Front

Disconnect lower joint

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

If you disconnect the lower joint on one side you can often feel if there is any play in the system.

Knocking and Rattling From The Front
Frequently discussed actions (4)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Disconnect lower joint

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

If you disconnect the lower joint on one side you can often feel if there is any play in the system.

Knocking and Rattling From The Front

Replace arms, bushes and the drop links

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

As Richards link (thank you) has such a great price, I will replace the arms, bushes and the drop links.

Knocking and Rattling From The Front

Replace drop links first

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion · Original poster

I will replace the drop links first.

Knocking and Rattling From The Front

Use trw

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

Chris at Center Gravity used TRW on mine, as far as I could tell they came from the same production line as Porsche ones, they just had the emblem ground off!

Knocking and Rattling From The Front
Reported and suspected causes (4)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

coffin arms

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that report identifying a cause
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported cause

It was the coffin arms on mine, exactly the same symptoms.

Knocking and Rattling From The Front

worn drop links

No successful repair reported for this finding.

1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that report identifying a cause
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Reported cause · Original poster

And that was caused by worn drop links.

Knocking and Rattling From The Front

easter will be a little dirty

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect a cause
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suspected cause

So thats the front sorted, just need to find the time and slot it all in - suspect easter will be a little dirty!!

Knocking and Rattling From The Front

lsd and not

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect a cause
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suspected cause · Original poster

I always assumed this was caused by the LSD and not to worry about.

Knocking and Rattling From The Front
Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

21 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Porsche Club GB: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

1 acknowledgements have no verified action link; they do not establish a repair result.

Outcome without a verified action link

New ones, not OEM, cured it straight away.

No unique explicit quoted action; no causal link assigned

Generation: 20261027T165639Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi , I have noticed a rattling from the front of my car over the last two days. It only does it on uneven roads. But it is very noticeable at low speeds. Previously I have noticed that when on full lock, either reversing or moving off slowly the car can make a knocking sound. I always assumed this was caused by the LSD and not to worry about. Should I be worried, and are the two issues related? My only other previous experience of this knocking sound was on my Elise. And that was caused by worn drop links.

POST 2Original post

I had this at some point on my car. How do your coffin arms look?

POST 3Original post

It was the coffin arms on mine, exactly the same symptoms. I had them replaced at the same time the M030 kit was fitted, they were in a right state.

POST 4Original post

Hi I noticed this clicking/ knocking from the front on my 4S.... but only when on full lock and I am doing a three point turn or similar. I just had brakes replaced and asked the mechanic to check out the control arms and links but he said all were ok? So is the steering perhaps?

POST 5Original post

Ditto, coffin arms on mine. New ones, not OEM, cured it straight away. P

POST 6Original post

Someone's got to ... What are coffin arms? Thanks

POST 7Original post

The Porsche parts catalogue that I have on my pc calls them 'wishbones'. So-called 'coffin arms' because of their shape. I see Design 911 calls them 'control arms'. I guess someone will add to/correct this. Paul.

POST 8 / ORIGINAL POSTEROriginal post

Coffin Arms it is then. Cheers. I believe you can get refurbed ones from Hartech at cheaper than anywhere else. Anyone have experience of these? I'll do the antiroll bar bushes at the same time. Any hints for doing these jobs?

POST 9Original post

You can buy the OE TRW ones from places like Type911 as cheap as the exchange ones. http://www.type911shop.co.uk/shop/article_1872/996-Front-_-Rear-Wishbone-OEM.html?sessid=3ENksr1tCours8yU3C9Yybz7YEqYDvLKbBtuig0ADJlZOQYlHxi22oocMHAuCfac&shop_param=cid%3D1044%26aid%3D1872%26 I wouldn't rule out drop links. If you disconnect the lower joint on one side you can often feel if there is any play in the system.

POST 10Original post

Chris at Center Gravity used TRW on mine, as far as I could tell they came from the same production line as Porsche ones, they just had the emblem ground off!

POST 11Original post

Same here, oh and theyre around 100 quid less[ ]

POST 12 / ORIGINAL POSTEROriginal post

As Richards link (thank you) has such a great price, I will replace the arms, bushes and the drop links. A front end freshen up for summer. But on another site it mentioned different arms (Coffin arms) for Litronics. Apparently to do with height sensor mountings? Or have I misread?

POST 13Original post

As far as I can remember the plastic bracket for the Litronic sensor 'drop link' just clips on to the wishbone. I don't think they are different.

POST 14 / ORIGINAL POSTEROriginal post

So that I don't completely empty my saving account. I will replace the drop links first. But I did see an article on Piston heads where someone mentioned that the clicking was caused by worn forked arms and note the Coffin Lids? Or am I barking up the wrong tree. The article had a brill picture of the front suspension assembly, unlike my 996 maintenance manual CD.

POST 15Original post

As Eddie Izzard says in the recycling adverts, "The possibilities are endless". This picture?

POST 16 / ORIGINAL POSTEROriginal post

Nope, your picture is even better. Thanks, it will be used.

POST 17Original post

Hi Richard any experience or knowledge of Meyle Porsche 996 998 Track Control Arm compared to TRW? Thanks Mike

POST 18Original post

I guess you mean these: http://www.incarmotorfactors.co.uk/en/1117203-meyle-porsche-996-998-track-control-arm-4160500000.html No experience, I'm afraid. Very cheap, and made in Germany, so they must be TUV approved (I would have thought). Design911 sell the same thing for £95.

POST 19Original post

Yes Richard Thats them, only asked as they are out of TRW's which are also cheaper than most. Thanks

POST 20Original post

Ey up found it all from Mr Auto and very reasonable including shipping and everything is all TRW too! http://www.mister-auto.co.uk Overview of your order;- Track Control Arm TRW JTC1170 @ £65.80 x 2 = £131.60 Track Control Arm TRW JTC1185 @ £32.72 x 2 = £65.44 Link Stabiliser TRW JTS585 @ £16.90 x 2 = £33.80 Shipping cost : £5.95 Total cost: = £236.79 So thats the front sorted, just need to find the time and slot it all in - suspect easter will be a little dirty!! Cheers

POST 21 / ORIGINAL POSTEROriginal post

Those prices look good. However, what does it mean "with accessories" because that is £138.34. Also do they get supplied with the required fastners? If not where can I find these? Sorry for the questions, but planned to get the suspension jobs done over the Easter weekend. Once done I can book the trip to Reims!

This is a source reference. Confirm exact model applicability in the original material.