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Hi

Have just had my l322 td6 checked for faults due to a shaking at 55mph ish, have been told to replace the servotronic steering valve to cure the problem.

The code the garage have just gave me is [62,7b 0,a2]

Anyone know if this code relates to the servotronic valve or is it just a generic steering fault code?

Has anyone replaced a servotronic valve on there l322? If so what kind of job is it and how much did the part cost you

Many thanks Jacko
 

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2002-2005 Range Rover MkIII / L322
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That doesnt look like a fault code, more like the comms' data. Codes usually look like P1551 etc.

I take it you have tried the basics, like balancing the tyres?
 

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2002-2005 Range Rover MkIII / L322
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Gazellio said:
From your other post:
This car is VERY susceptible to mid speed steering shimmy unless the the wheels are perfectly balanced and it a known Range Rover fault. End of.
I wouldnt really class it as a "Fault" the wheels need to be balanced. End of.

Unfortunately when you watch KwikFit do it, it's quite obvious they don't do it precicely enough. Also weights are generally only put on the inside of the wheel to keep it looking nice.... So basically make sure they know what they are doing (that doesnt mean a LR dealer)
 

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I think of it as a fault as because having owned about 40 different makes and models over the last 30 years including quality Porsche's, BMW's & other Land Rovers I have never had a problem with Wheel shudder/shimmy due to incorrectly balanced wheels, even when tyres are worn and due for renewal. For Land Rover to issue a lengthy dealer bulletin (see below) on the matter and for some dealers to say that it "just the way it is" say's to me that it is definitely a design fault for such an expensive car.

No.: LTB00030
Issue: 1
Date: May 24, 2007

SECTION: 204-04 - WHEELS AND TIRES
Steering Wheel Vibration / Steering Shimmy
AFFECTED VEHICLE RANGE:
Range Rover (LM) VIN: 3A101029 to 5A198056
Range Rover Sport (LS) VIN: 6A900129 and up
THIS BULLETIN REPLACES LS204-009. A NUMBER OF CHANGES HAVE BEEN MADE, INCLUDING ADDITION OF RANGE ROVER VEHICLES AND CHANGES TO SITUATION, REPAIR PROCEDURES AND PARTS. THIS IS A NEW BULLETIN. CHANGES FROM THE PREVIOUSLY PUBLISHED DOCUMENT ARE NOT HIGHLIGHTED.
CONDITION SUMMARY:
STEERING WHEEL VIBRATION / STEERING SHIMMY
Situation:
A customer may report a concern that the steering wheel vibrates in a side to side motion or shimmy when the vehicle is traveling at 50-70 mph (80-112 kph). This situation is more noticeable when 20 inch alloy wheels are installed. Tire flat spots, wheel assembly balance or tire radial force variation can lead to this situation.

Action:
Should a customer express concern regarding the above, refer to the Repair Procedures detailed in this bulletin to resolve the concern.
PARTS
TOOLS:
Hunter 9700/9712 wheel balance machine
To ensure the wheel/tire assembly is balanced correctly, Land Rover recommends the use of a five fingered clamp to support the wheel/tire assembly on the balance machine. (Figure 1) Haweka 9700 hub to wheel adapter (Figure 2)
WARRANTY:
NOTE: Repair procedures are under constant review, and therefore times are subject to change; those quoted here must be taken as guidance only. Always refer to DDW to obtain the latest repair time.
NOTE: Steps 1 of the Repair Procedure are part of the Vehicle Preparation process. No claim should be initiated if the performance of these steps at initial vehicle preparation resolves the concern.
DDW requires the use of causal part numbers.
Labor only claims must show the causal part number with a quantity of zero.
REPAIR PROCEDURE
VEHICLE PREPARATION STEPS
NOTE: Step 1 of the procedure is part of the Vehicle Preparation process. No claim should be initiated if the performance of this step at initial vehicle preparation resolves the concern.
NOTE: Until flat-spots are removed, significant shimmy may be present, even if the car has only stood overnight. A test drive is required to ensure temporary tire flat spots are removed. For flat-spots from longer term stationary storage, a longer drive may be required. The test drive should be carried out on normal open roads to allow the highest speed that speed limits and road/traffic conditions allow.
1. If the vehicle is undergoing initial vehicle preparation, perform the following as part of the test drive:
^ Refer to the Vehicle Preparation Manual and adjust the tire pressures to the recommended cold tire pressures.
^ Drive the vehicle for at least 10 miles (15 km) before attempting to assess shimmy.
^ Assess the level of wheel vibration.
2. If a customer complaint is being resolved, perform the following:
^ Adjust the tire pressures to the recommended cold tire pressures.
^ Drive the vehicle for at least 10 miles (15 km) before attempting to assess shimmy.
^ Assess the level of wheel vibration.
3. If the level of steering vibration is considered acceptable, no further action is required.
4. If the levels of vibration remain unacceptable, perform the Balance Wheels section below.

BALANCE WHEELS AS REQUIRED
1. Raise vehicle on a lift immediately on return to the workshop, to avoid inducing further tire flat spots.
2. Remove all four road wheel and tire assemblies for balancing.
3. Inflate each tire to 36 psi (2.5 bar) +/- 1 psi (0.1 bar).
CAUTION: All 19 and 20 inch wheels used on Range Rover Sport vehicles must be balanced with adhesive balance weights in all locations whenever balancing is performed. 9J x 19 alloy wheel requiring balancing must only be fitted with adhesive balance weights on the inner surface of the wheel. Other types of weights will cause damage to the vehicle. Refer to Technical Bulletin RB039.
NOTE: For adhesive weights, use the attachment arm on the Hunter machine to ensure accurate weight positioning.
4. Refer to Figures 3, 4 and 5 for correct wheel fitting attachment to the balance machine and balance road wheel and tire assemblies until the residual imbalance dynamic is minimized:
^ Target is 0g on each plane; maximum is inner 5g, outer 5g.
^ Use the bulls-eye balancing mode to minimize residual imbalance.
5. If tire road force variation (RFV) measuring is available, the road wheel and tire assembly should aim for a maximum of:
60 Newton (6.1 kgf or 13.4 lbf) 1st harmonic RFV
100 Newton (10.2 kgf or 22.5 lbf) peak-to-peak.
6. If these levels cannot be achieved, perform the following:
^ Remove the tire.
^ Follow the match mounting procedure as detailed by the Hunter machine.
^ Mark the high point of 1st harmonic RFV on the tire (ideally also mark on the inside too, as a future reference).
^ Install the lowest 1st harmonic RFV units to the front.
^ Print out the results of balance and force variation before and after, and attach to repair order.
NOTE: If RFV equipment is not available and the tire has not been removed from the wheel and the RFV spot (red dot) is still visible this, should be installed at the bottom.
7. Mark the high-point of RFV.
NOTE: Nothing should be used to brace the wheel while tightening the nuts as this can disturb the match mounting.
8. Install all four road wheel and tire assemblies with the RFV high point at the bottom. (Figure 6).
9. Tighten the wheel nuts to a snug "finger tight" condition with no wobble between the wheel and the mounting surface.
10. Lower the vehicle partially so that a light to moderate load is placed on the wheel assemblies.
11. Tighten wheel nuts to 140 Nm (103 lbf-ft).
12. Completely lower the vehicle and verify tire pressures are at recommended settings.
13. Drive the vehicle for approximately 5 miles (7 km) carried out on normal roads and up to speeds of approximately 50 mph (80 kph) and assess the level of steering wheel vibration.
NOTE: All prior Repair Procedure steps must be completed before replacing the steering gear assembly. Replacement racks are obtained via the FRED procedure and require submission of wheel balance data.
NOTE: Global Technical Reference (GTR) lookup sequence is as follows:
GTR Home> NAS > Service Information / LS - Range Rover Sport/2006> Workshop Manuals> Bookmark "Chassis/Steering System/211-02: Power Power Steering" Link Removal and Installation Steering Gear - 4.2L vehicles with Supercharger (57.10.01) or Steering Gear - 4.4L (57.10.01)
OR
GTR Home> NAS > Service Information / LM - Range Rover/2005 > Workshop Manuals> Range Rover Workshop Manual Service Procedures> Bookmark "57 Steering" Link "57.10.01 Power Steering Rack - Left Hand Drive V8"
14. If the levels of vibration remain unacceptable, refer to GTR section 57.10.01 and replace the steering gear assembly following the FRED procedure to obtain the correct replacement component listed in this bulletin.
 

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"I think of it as a fault as because having owned about 40 different makes and models over the last 30 years including quality Porsche's, BMW's & other Land Rovers I have never had a problem with Wheel shudder/shimmy due to incorrectly balanced wheels"

So do garages just balance wheels for the fun of it on every other car then? You will get shimmy on EVERY car if the wheels are not balanced. Large tyres are difficult to balance because if they are substantially out of balance then you cannot fit enough weights on the other side of the wheel to balance them out properly (especially if you wont put them on the front) The balancing is to correct imbalances in the tyre construction, so a lot of it depends on the Tyre. X5's suffer the same problem as they generally share tyre sizes and manufacturers.

My problems went away when I moved away from Goodyear Wranglers, I had bad shimmy on both my P38 and L322, completely solved with a different brand. The Wranglers were also wearing incorrectly. My mothers Freelander has Wranglers too, they were fine when they were new, now at 50% wear they need replacing due to patchy wear and bad shimmy.

Sorry, Wrangler rant over!
 

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Dan_UK_1984 - "So do garages just balance wheels for the fun of it on every other car then? "

I was simply pointing out the fact that many L322 owners are having the same shimmy problem and Land Rover acknowledges this. Having driven lots of other car models over 30 years and having never experience a similar Balance Shimmy it would seem to be a problem that is very much exaggerated in the Range Rover L322 (2002/2005).

Not after an argument :p
 

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I would also never buy Goodyear Wranglers and would in fact much prefer a Standard set of Wheels/Tyres on my next Range Rover. I will be leaving the low profile options well alone. I will be happiest with a set of 275/55 R19 on rims that don't risk "kerbing" every time you park! 4X4 driving is suppose to allow confident kerb crossing 8)
 
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