| Author |
Message |
eike Guest
Free account, no CAN development support
|
16-05-2002, 12:10 Subject: Instructions for Replacing the Servo Pump
**Important:** Before starting any work, disconnect the negative terminal of the battery.
**Tools Required:**
* Socket wrench set
* Screwdrivers (Phillips and flathead)
* Pliers
* New servo pump
* New O-ring (if applicable)
* verschandeln rags
* Penetrating oil (optional)
**Procedure:**
1. **Preparation:**
* Locate the servo pump. It is typically located near the steering gear.
* Carefully disconnect the electrical connector from the servo pump.
* Disconnect the hydraulic lines from the servo pump. Use pliers to loosen the fittings if necessary.
* Remove any screws or bolts that secure the servo pump to the vehicle.
2. **Removal:**
* Carefully remove the servo pump from the vehicle.
* Inspect the old O-ring for damage. If damaged, replace it with a new one.
3. **Installation:**
* Install the new O-ring (if applicable) onto the new servo pump.
* Carefully install the new servo pump into the vehicle. |
Quote |
|
Hello, professional mechanics,
In my wife's 1996 Golf 3 TDI (1Z), the power steering pump's bearing has failed. The pump therefore needs to be replaced, and that already after 115,000 km.
At VW, the pump costs 211 EUR + installation. But I think I'll take a used one and install it myself.
Has anyone had experience with this?
I am particularly interested in the following points:
1. Is there an oil drain screw, if so, where is it located?
2. Can the oil be reused, or is it better to use new oil? How much of each type of oil is needed?
3. Must the system be bled afterwards?
4. Is there anything specific that I should be particularly careful about?
Thank you very much for your help.
Greetings from the North
Eike
Translated on 03-07-2026, 15:19.
|
|
| Back to top |
|
 |
andreas Guest
Free account, no CAN development support
|
17-05-2002, 12:18 Subject: Servopump |
Quote |
|
Hi Eike!
Had a problem with the steering recently, which ultimately turned out to be nothing serious.
Just so:
VW recommends replacing the entire circuit, including , when replacing the pump (e.g., due to dry running, leaks, noises, etc.). Oil, as shavings may occur, which could damage the steering gear.
damage/make it leak (can).
Used is a hydraulic oil, similar to that used for automatic transmissions.
What problems do you have?
Note: I had an oil leak at that time (without any oil traces on or outside the vehicle!!!!!), VW diagnosed a faulty steering gear. Later, I discovered that due to a faulty seal on the cap of the reservoir, the liquid simply evaporated!
Greetings
Andreas
Translated on 03-07-2026, 15:19.
|
|
| Back to top |
|
 |
eike Guest
Free account, no CAN development support
|
19-05-2002, 11:05 Subject: Re: Servo Pump |
Quote |
|
Hello,
It started with strange noises, which sounded like metal scraping against metal. But only temporarily, especially noticeable when listening near the driver's side at the edge of the wheel.
Subsequently, VW investigated the problem and removed both V-belts. The noise was gone and reappeared the moment the V-belt for the power steering pump was reinstalled. Therefore, the belt was removed again, and it was discovered that the bearing of the power steering pump had significantly too much play (The wheel could be clearly tilted back and forth). The metallic noise comes from a loose metal ring on the pump shaft bearing, which rotates loosely and makes the noise. The part is either rotten or has come loose due to the bearing damage.
Furthermore, my wife informs me about noises when the steering wheel is fully turned, and she also mentioned that the power steering has already had two failures. But there's enough oil.
The workshop foreman said that a new pump was needed. He didn't say anything about any other things.
Does the pump actually have a ball bearing or a roller bearing?
In the parts store, I can get an AT pump for 123 euros. Possibly from a salvage yard for 80-100 euros. But who knows how long it will last...
Greetings
Eike
Translated on 03-07-2026, 15:19.
|
|
| Back to top |
|
 |
Stukov Guest
Free account, no CAN development support
|
19-05-2002, 13:48 Subject: Instructions for Replacing the Servo Pump
**Important:** Before starting any work, disconnect the negative terminal of the battery.
**Tools Required:**
* Socket wrench set
* Screwdrivers (Phillips and flathead)
* Pliers
* New servo pump
* New O-ring (if applicable)
* verschandeln rags
* Penetrating oil (optional)
**Procedure:**
1. **Preparation:**
* Locate the servo pump. It is typically located near the steering gear.
* Carefully disconnect the electrical connector from the servo pump.
* Disconnect the hydraulic lines from the servo pump. Use pliers to loosen the fittings if necessary.
* Remove any screws or bolts that secure the servo pump to the vehicle.
2. **Removal:**
* Carefully remove the servo pump from the vehicle.
* Inspect the old O-ring for damage. If damaged, replace it with a new one.
3. **Installation:**
* Install the new O-ring (if applicable) onto the new servo pump.
* Carefully install the new servo pump into the vehicle. |
Translating... |
|
[Translating...]Das mit den Geräuschen bei vollem Lenkradeinschlag und Servoausfall hab ich auch, das läßt sich aber auch leicht erklären, der Keilriemen geht durch. Bevorzugt bei Nässe plus hoher Belastung (Volleinschlag) und bei Regen und seltsamerweise bevorzugt Rechtskurven, schätze ich muß mal den Riemen wechseln. |
|
| Back to top |
|
 |
eike Guest
Free account, no CAN development support
|
27-05-2002, 9:51 Subject: Instructions for Replacing the Servo Pump
**Important:** Before starting any work, disconnect the negative terminal of the battery.
**Tools Required:**
* Socket wrench set
* Screwdrivers (Phillips and flathead)
* Pliers
* New servo pump
* New O-ring (if applicable)
* verschandeln rags
* Penetrating oil (optional)
**Procedure:**
1. **Preparation:**
* Locate the servo pump. It is typically located near the steering gear.
* Carefully disconnect the electrical connector from the servo pump.
* Disconnect the hydraulic lines from the servo pump. Use pliers to loosen the fittings if necessary.
* Remove any screws or bolts that secure the servo pump to the vehicle.
2. **Removal:**
* Carefully remove the servo pump from the vehicle.
* Inspect the old O-ring for damage. If damaged, replace it with a new one.
3. **Installation:**
* Install the new O-ring (if applicable) onto the new servo pump.
* Carefully install the new servo pump into the vehicle. |
Translating... |
|
[Translating...]Hallo,
ich habe mir eine neue Pumpe (AT-Teil) für 129 € (24 Monate Garantie) gekauft und sie eingebaut. Das war weiter nicht besonders problematisch. Das Öl habe ich soweit es ging ablaufen lassen und anschließend neues aufgefüllt (sogenanntes ATF III - Öl).
Anschließend Motor gestartet, Servolenkung funktioniert. Dann habe ich eine kleine Probefahrt gemacht und an der ersten Kreuzung nach ca. 1 km hatte die Servolenkung keine Wirkung mehr. Dann habe ich den Motor noch kurz im Stand laufen lassen und die Servounterstützung kam wieder.
Nachdem ich dann wieder nach Hause gefahren bin, was es vorbei mit der Servounterstützung.
Ich habe dann bei dem Händler (mit Meisterwerkstatt) angerufen. Der meinte, das der Wagen etwas stehen müßte, da sich wohl an einer ungünstigen Stelle eine Luftblase festgesetzt haben wird, die dann weiterwandern würde. Aber auch das Stehen hat nix gebracht. Bin inzwischen über 120 km gefahren, ohne daß sich etwas verbessert hat.
Hat jemand eine Idee, wie man die Luft aus dem System herausbekommt? Gibt´s eine Entlüftungsschraube?
Gruß
Eike |
|
| Back to top |
|
 |
Andy Guest
Free account, no CAN development support
|
27-05-2002, 12:04 Subject: Air in the power steering |
Quote |
|
Hi,
In my previous work on the power steering system (although for a Golf II), the system has always self-vented. As it is also described in the manuals.
Therefore, there is no vent screw either.
Are all the lines and connections sealed? New seals used??
Translated on 03-07-2026, 15:19.
|
|
| Back to top |
|
 |
eike Guest
Free account, no CAN development support
|
27-05-2002, 14:12 Subject: Re: Air in the power steering |
Quote |
|
Hello Andy,
the pipes are sealed. New seals (the 2 copper rings at the pump outlet) have also been installed.
It's strange, that it worked at first, but then it stopped. The pump initially made the typical sounds that one would expect from a VW, such as when the power steering is fully engaged.
That's also gone. However, the timing belt has the correct tension. It can't be that. Oil is sufficient.
I initially thought that the pump might be sucking the intake rubber hose flat, and then not getting any more oil. But the hose doesn't collapse, even when the motor is running at 3000 RPM.
It's quite strange. I'll probably go to the workshop where I bought the pump. Let's see what they have to say...
Greetings from OL
Eike
Translated on 03-07-2026, 15:19.
|
|
| Back to top |
|
 |
Arne Guest
Free account, no CAN development support
|
27-05-2002, 15:45 Subject: Instructions for Replacing the Servo Pump
**Important:** Before starting any work, disconnect the negative terminal of the battery.
**Tools Required:**
* Socket wrench set
* Screwdrivers (Phillips and flathead)
* Pliers
* New servo pump
* New O-ring (if applicable)
* verschandeln rags
* Penetrating oil (optional)
**Procedure:**
1. **Preparation:**
* Locate the servo pump. It is typically located near the steering gear.
* Carefully disconnect the electrical connector from the servo pump.
* Disconnect the hydraulic lines from the servo pump. Use pliers to loosen the fittings if necessary.
* Remove any screws or bolts that secure the servo pump to the vehicle.
2. **Removal:**
* Carefully remove the servo pump from the vehicle.
* Inspect the old O-ring for damage. If damaged, replace it with a new one.
3. **Installation:**
* Install the new O-ring (if applicable) onto the new servo pump.
* Carefully install the new servo pump into the vehicle. |
Translating... |
|
[Translating...]Das gleiche Problem habe ich auch.
Nach dem Tausch des lenkgetriebes funktionierte die Servolenkung für kurze Zeit. Nun geht nix mehr mit Servo.
Hat jemand ne Idee was da im Argen sein kann? Hatte schon viel Geld für das Lenkgetriebe gezahlt? Kann man den Druck der Servopumpe prüfen?
Bin für jede Hilfe dankbar.
Arne |
|
| Back to top |
|
 |
Andy Guest
Free account, no CAN development support
|
27-05-2002, 19:58 Subject: Re: Air in the power steering |
Quote |
|
Hello Andy,
the pipes are sealed. New seals (the 2 copper rings at the pump outlet) have also been installed.
It's strange, that it worked at first, but then it stopped. The pump initially made the typical sounds that one would expect from a VW, such as when the power steering is fully engaged.
That's also gone. However, the timing belt has the correct tension. It can't be that. Oil is sufficient.
I initially thought that the pump might be sucking the intake rubber hose flat and therefore not getting any more oil.
So, wenn die Pumpe nicht mehr die typischen Geräusche macht und der Keilriemen in Ordnung ist, dann bekommt sie einfach kein Öl. Ich würde mal kontrollieren, ob auf der Ansaugsseite der Pumpe Öl direkt bis zur Pumpe anliegt. It's also possible that the hose from the reservoir to the pump is completely empty (and will likely be so after removal), and the pump won't be able to pump out that much air.
Okay, let's try this:
1) Open the container lid
2) Disconnect the hose on the suction side (it is usually only secured with a hose clamp)
3) Wait until the oil flows from the hose
4) Reconnect the hose to the pump
Then the pump should also be able to pump out the remaining air.
Good luck...
Translated on 03-07-2026, 15:19.
|
|
| Back to top |
|
 |
Arne Guest
Free account, no CAN development support
|
28-05-2002, 14:31 Subject: Instructions for Replacing the Servo Pump
**Important:** Before starting any work, disconnect the negative terminal of the battery.
**Tools Required:**
* Socket wrench set
* Screwdrivers (Phillips and flathead)
* Pliers
* New servo pump
* New O-ring (if applicable)
* verschandeln rags
* Penetrating oil (optional)
**Procedure:**
1. **Preparation:**
* Locate the servo pump. It is typically located near the steering gear.
* Carefully disconnect the electrical connector from the servo pump.
* Disconnect the hydraulic lines from the servo pump. Use pliers to loosen the fittings if necessary.
* Remove any screws or bolts that secure the servo pump to the vehicle.
2. **Removal:**
* Carefully remove the servo pump from the vehicle.
* Inspect the old O-ring for damage. If damaged, replace it with a new one.
3. **Installation:**
* Install the new O-ring (if applicable) onto the new servo pump.
* Carefully install the new servo pump into the vehicle. |
Translating... |
|
[Translating...]andy, das werd ich versuchen. Hoffentlich hilft mir das weiter.
Werde berichten, sobald ich mehr weiß. |
|
| Back to top |
|
 |
Arne Guest
Free account, no CAN development support
|
29-05-2002, 9:07 Subject: Instructions for Replacing the Servo Pump
**Important:** Before starting any work, disconnect the negative terminal of the battery.
**Tools Required:**
* Socket wrench set
* Screwdrivers (Phillips and flathead)
* Pliers
* New servo pump
* New O-ring (if applicable)
* verschandeln rags
* Penetrating oil (optional)
**Procedure:**
1. **Preparation:**
* Locate the servo pump. It is typically located near the steering gear.
* Carefully disconnect the electrical connector from the servo pump.
* Disconnect the hydraulic lines from the servo pump. Use pliers to loosen the fittings if necessary.
* Remove any screws or bolts that secure the servo pump to the vehicle.
2. **Removal:**
* Carefully remove the servo pump from the vehicle.
* Inspect the old O-ring for damage. If damaged, replace it with a new one.
3. **Installation:**
* Install the new O-ring (if applicable) onto the new servo pump.
* Carefully install the new servo pump into the vehicle. |
Translating... |
|
[Translating...]:kotzsmilie: ... habe die Leitung zur Servopumpe abgenommen. Die war voll mit ÖL. Allerdings ist eine Verzweigung in der Leitung zur Servopumpe und zwar geht auch ein Strang zum Lenkgetriebe.
Hat sonst noch einer Ideeeen?
Will endlich wieder lenken... |
|
| Back to top |
|
 |
eike Guest
Free account, no CAN development support
|
29-05-2002, 21:00 Subject: Instructions for Replacing the Servo Pump
**Important:** Before starting any work, disconnect the negative terminal of the battery.
**Tools Required:**
* Socket wrench set
* Screwdrivers (Phillips and flathead)
* Pliers
* New servo pump
* New O-ring (if applicable)
* verschandeln rags
* Penetrating oil (optional)
**Procedure:**
1. **Preparation:**
* Locate the servo pump. It is typically located near the steering gear.
* Carefully disconnect the electrical connector from the servo pump.
* Disconnect the hydraulic lines from the servo pump. Use pliers to loosen the fittings if necessary.
* Remove any screws or bolts that secure the servo pump to the vehicle.
2. **Removal:**
* Carefully remove the servo pump from the vehicle.
* Inspect the old O-ring for damage. If damaged, replace it with a new one.
3. **Installation:**
* Install the new O-ring (if applicable) onto the new servo pump.
* Carefully install the new servo pump into the vehicle. |
Translating... |
|
[Translating...]Moin Jungs,
soweit war ich auch schon, und habe aucvh keine Luft vor der Pumpe gefunden. Ich fahre morgen Nachmittag zu der Werkstatt, wo ich die Pumpe herhabe.
Vielleicht eine Idee: Wie wäre es, den Abgang der Pumpe (Druckseite etwas zu lösen, so das die Pumpe nicht gegen einen Druck arbeiten muß. Vielleicht entweicht dann in der Pumpe vorhandene Luft. Wenn ich mir die verwendeten Leitungen und Schläuche so anschaue, scheint die Pumpe ganz ordendlich Druck zu machen. Das kann sie aber nicht, wenn sie nur Luft zu beißen hat. Ähnlich wie eine Grundwasserpumpe, die Luft zieht...
Fragt sich nur, was passiert, wenn sie dann plötzlich wieder Öl bekommt und der Druck schlagartig ansteigt. Nicht, daß dann alles im Umkreis von 5 Metern verölt ist
Ich werde berichten, woran es lag, wenn ich den Fehler gefunden habe.
Gruß
Eike |
|
| Back to top |
|
 |
Andy Guest
Free account, no CAN development support
|
29-05-2002, 22:39 Subject: Servo-Pump... |
Quote |
|
Hi,
IMO, it could only be about air in the system.
Try loosening the pressure fitting on the steering gear, so that any 'stuck' air can escape.
Loosen the cover nut slightly; place a rag over it; start the engine; wait for the oil to come up; tighten the nut again and then turn it several times from one end to the other, so that any remaining air is pumped out of the steering gear.
Keep up the good work...
Translated on 03-07-2026, 15:19.
|
|
| Back to top |
|
 |
eike Guest
Free account, no CAN development support
|
30-05-2002, 19:45 Subject: Re: Servo Pump.... |
Quote |
|
Hello Andy,
I went to the workshop today. There, the mechanic disconnected the fuel line from the pump and started the engine. There was only oil.
However, he suggested that the rubber seals within the hydraulic cylinder in the steering gear might be the cause of the problem. According to him, these seals could collapse if air is present in the cylinder, and if the steering is then operated under load. Then it would become really expensive.
However, the fact that the service support initially functioned and only failed during the test drive speaks against this. In that case, the air should have been out long ago. If the problem is actually due to the rubber rings, then IMO it should have been present from the beginning and not only after a few steering movements.
It's also strange that there are no visible currents in the oil tank when gas is injected. Before, it was clearly visible how the oil was being circulated.
The workshop has now ordered a new pump, which I will receive tomorrow. Maybe (hopefully) something has just dislodged in the 'old' part, and I can fix the problem by replacing it again.
I will let you know how it turns out...
Greetings
Eike
Translated on 03-07-2026, 15:19.
|
|
| Back to top |
|
 |
Arne Guest
Free account, no CAN development support
|
31-05-2002, 12:01 Subject: Instructions for Replacing the Servo Pump
**Important:** Before starting any work, disconnect the negative terminal of the battery.
**Tools Required:**
* Socket wrench set
* Screwdrivers (Phillips and flathead)
* Pliers
* New servo pump
* New O-ring (if applicable)
* verschandeln rags
* Penetrating oil (optional)
**Procedure:**
1. **Preparation:**
* Locate the servo pump. It is typically located near the steering gear.
* Carefully disconnect the electrical connector from the servo pump.
* Disconnect the hydraulic lines from the servo pump. Use pliers to loosen the fittings if necessary.
* Remove any screws or bolts that secure the servo pump to the vehicle.
2. **Removal:**
* Carefully remove the servo pump from the vehicle.
* Inspect the old O-ring for damage. If damaged, replace it with a new one.
3. **Installation:**
* Install the new O-ring (if applicable) onto the new servo pump.
* Carefully install the new servo pump into the vehicle. |
Translating... |
|
[Translating...]YO - gib mal bescheid wenn Du näheres weißt.
Ich hab echt kein Bock mehr auf den Scheiss ...'
 - Arne |
|
| Back to top |
|
 |
eike Guest
Free account, no CAN development support
|
03-06-2002, 8:42 Subject: Instructions for Replacing the Servo Pump
**Important:** Before starting any work, disconnect the negative terminal of the battery.
**Tools Required:**
* Socket wrench set
* Screwdrivers (Phillips and flathead)
* Pliers
* New servo pump
* New O-ring (if applicable)
* verschandeln rags
* Penetrating oil (optional)
**Procedure:**
1. **Preparation:**
* Locate the servo pump. It is typically located near the steering gear.
* Carefully disconnect the electrical connector from the servo pump.
* Disconnect the hydraulic lines from the servo pump. Use pliers to loosen the fittings if necessary.
* Remove any screws or bolts that secure the servo pump to the vehicle.
2. **Removal:**
* Carefully remove the servo pump from the vehicle.
* Inspect the old O-ring for damage. If damaged, replace it with a new one.
3. **Installation:**
* Install the new O-ring (if applicable) onto the new servo pump.
* Carefully install the new servo pump into the vehicle. |
Translating... |
|
[Translating...]Moin,
ich habe am Wochenende die 2te Pumpe eingebaut. Und siehe da, es funktioniert.
Ich habe vorher noch mal mit zwei Werkstattleuten von VW gesprochen, die mir beide versicherten, daß es dabei nix zum Entlüften gibt. Allerdings wird empfohlen, nach Einbau der neuen Pumpe und Auffüllen mit Öl, die Lenkung möglichst lastfrei (aufgebockt) ohne laufenden Motor ein paar mal von Anschlag zu Anschlag zu Lenken.
@ Arne: wenn die Pumpe läuft, siehst Du im Ölbehälter die Ölströmung, da daß Öl auch ohne Lenkbewegung in die Runde gepumpt wird. Diese verstärkt sich, wenn man etwas Gas gibt. Diese Strömung war bei mir nicht mehr zu sehen. Bei der neuen Pumpe war sie sofort wieder da.
Wenn Du keine Strömung feststellen kannst, solltest Du mal die Pumpe wechseln. Auf dem Schrottplatz bekommt man sowas so ab 80€. Ich habe eine AT-Pumpe beim Zubehörhändler für 129€ mit 2 J Garantie bekommen. Preise vergleichen lohnt sich!
PS: Öl brauchst Du natürlich auch. Ich habe ein sogenanntes ATF III - Öl genommen. Kostste noch mal 6,50€ pro Liter. Eine Dose (1l) reicht aber.
Soweit...
Gruß
Eike |
|
| Back to top |
|
 |
|