I want my script to wait 2 seconds before continue in a condition, in update, using C#

Here is what i got:

using UnityEngine;
using System.Collections;

public class Compuerta : MonoBehaviour {

public int lobajo = -10;

public GameObject player;
public GameObject compuertilla;

private Animator comp;

void Start () {

	comp = gameObject.GetComponentInChildren<Animator>();

}

void Update () {

	if (player.transform.position.y < lobajo) {
	
		comp.SetInteger ("Autocom", 1);
		compuertilla.GetComponent<MeshCollider> ().enabled = false;
	
	}

	else if (player.transform.position.y > lobajo) {

         **//Here is where I want it to wait for  2 seconds**

		comp.SetInteger ("Autocom", 0);
		compuertilla.GetComponent<MeshCollider> ().enabled = true;

	}

}

}

I have searched, but nobody answer it for an update, can someone help me pls?

Use Coroutines!

public class Compuerta : MonoBehaviour 
{
	public int lobajo = -10;
	public GameObject player;
	public GameObject compuertilla;
	private Animator comp;
	void Start () 
	{
		comp = gameObject.GetComponentInChildren<Animator>();
		StartCoroutine(UpdateCoroutine());
	}
	
	IEnumerator UpdateCoroutine() 
	{
		while(true)
		{
			if (player.transform.position.y < lobajo) 
			{
				comp.SetInteger ("Autocom", 1);
				compuertilla.GetComponent<MeshCollider> ().enabled = false;
			}
			else if (player.transform.position.y > lobajo) 
			{
				**//Here is where I want it to wait for  2 seconds**
				yield return new WaitForSeconds(2);
				comp.SetInteger ("Autocom", 0);
				compuertilla.GetComponent<MeshCollider> ().enabled = true;
			}
			yield return null;
		}
	}
}

Ok You can by using time vairable in Update :

public int lobajo = -10;
	public GameObject player;
	public GameObject compuertilla;
	private Animator comp;

	float timeCount;
	public float delayTime = 2.0f;

	void OnEnable ()
	{
		timeCount = 0;
	}

	void Start ()
	{
		comp = gameObject.GetComponentInChildren<Animator> ();
	}

	void Update ()
	{
		if (timeCount < delayTime) {
			timeCount += Time.deltaTime;
			return;
		}

		if (player.transform.position.y < lobajo) {

			comp.SetInteger ("Autocom", 1);
			compuertilla.GetComponent<MeshCollider> ().enabled = false;

		} else if (player.transform.position.y > lobajo) {
			**//Here is where I want it to wait for  2 seconds**
			comp.SetInteger ("Autocom", 0);
			compuertilla.GetComponent<MeshCollider> ().enabled = true;
		}
	}